 Hesler LR , Smith AH ( 1979 ) . North American Species of Lactarius . Ann Arbor , Michigan : The University of Michigan Press . ISBN 0 @-@ 472 @-@ 08440 @-@ 2 . 
 Hesler LR , Smith AH ( 1979 ) . North American Species of Lactarius . Ann Arbor , Michigan : The University of Michigan Press . ISBN 0 @-@ 472 @-@ 08440 @-@ 2 . 
Hesler LR , Smith AH ( 1979 ) . North American Species of Lactarius . Ann Arbor , Michigan : da University of Michigan Press . ISBN 0 @-@ 472 @-@ 08440 @-@ 2 .