Gaya APA

anonim, . (2009). USP 32 : NF 27 the official compendia of standards 9 ( Vol 2 ) . Rockville, MD 20853: The united states pharmacopoeial convention.

Gaya MLA

anonim, . "USP 32 : NF 27 the official compendia of standards 9 ( Vol 2 )". Rockville, MD 20853: The united states pharmacopoeial convention, 2009. Text.