How to cite a paragraph that is copy and pasted from another source? I’m writing the master thesis, and I’d like to know if the following text would be appropriate or not. Consider the middle paragraph is copy-pasted from the source https://www.lipsum.com/


  In this section, I will briefly overview the Lipsum dummy texts and full details can
  be found in the source [1].
  
  Lorem Ipsum is simply dummy text of the printing and typesetting
  industry. Lorem Ipsum has been the industry's standard dummy text ever
  since the 1500s, when an unknown printer took a galley of type and
  scrambled it to make a type specimen book. It has survived not only
  five centuries, but also the leap into electronic typesetting,
  remaining essentially unchanged. It was popularised in the 1960s with
  the release of Letraset sheets containing Lorem Ipsum passages, and
  more recently with desktop publishing software like Aldus PageMaker
  including versions of Lorem Ipsum.
  
  Bibliography: [1] Source, formatted in APA, IEEE, …
You open with:


  In this section, I will briefly overview the Lipsum dummy texts and full details can be found in the source [1].


This suggests you are providing a brief overview, yet you follow with (what I presume is) a verbatim quote:


  Lorem Ipsum is simply dummy text of the printing and typesetting industry. Lorem Ipsum has been the industry's standard dummy text ever since the 1500s, when an unknown printer took a galley of type and scrambled it to make a type specimen book. It has survived not only five centuries, but also the leap into electronic typesetting, remaining essentially unchanged. It was popularised in the 1960s with the release of Letraset sheets containing Lorem Ipsum passages, and more recently with desktop publishing software like Aldus PageMaker including versions of Lorem Ipsum.


I suggest revising your opening sentence (perhaps provide context and set the scene, then introduce the verbatim quote) 
 and indenting the quoted text, you can use  \begin{quote}...\end{quote} if you're using LaTeX.



Comment from the OP:


  So, as I see, using proper indentation and indexing to references is enough to quote a source? 


Indentation is appropriate for long quotations, such as the example you provided. For shorter quotations, you can wrap a quote inside quotation marks (and follow with a citation), e.g., "Lorem Ipsum is simply dummy text of the printing and typesetting industry" [1]. In both cases, a reference to the original source must be provided.