MLA multiple parenthetical citation essay without page numbers I have an older source that has no pagination. My question concerns the correct mode of multiple parenthetical in-text reference to the source according to MLA style.

In the works cited section:

Smith, Alexander. "The Problems of Writing." New Inquiry (1940): n. pag.

In text (version 1):

Smith argues that writing is "a problem of its own" (1940). He goes on to refer to the "complicated process of writing a text." He explains it in ...

Question: How do I back up the second, third, etc. reference to the unpaginated source in my own text? Is the text above right or do I need to have the year in brackets every time I quote from the text? Something like:

version 2: Smith argues that writing is "a problem of its own" (1940). He goes on to refer to the "complicated process of writing a text" (1940). He explains...

Or do I reference "n.pag." in the text:

version 3: Smith argues that writing is "a problem of its own" (1940 n. pag.). He goes on to refer to the "complicated process of writing a text" (n. pag.). He explains...

Thank you very much!
Well, normally with MLA in-text citations, you should have the author's name in the parenthetical citations followed by the page number. Since you do not have a page number, you could remedy this by putting the chapter name in quotes instead ( e.g. (Levitt, "The Hidden Side of Everything")). If neither of these are available, you could put the name of the piece in the citations in quotes since you have already said the author's name in the sentence (e.g. ("Freakonomics")).

MLA Rules: https://owl.english.purdue.edu/owl/resource/747/2/
Chapter Name in Citation: http://www.easybib.com/guides/citation-guides/mla-format/how-to-cite-a-parenthetical-citations-mla/