Twelfth report
By: Expert Committee on Biological Standardization
Series: World Health Organization technical report series -- no. 172; Technical report series (World Health Organization) -- 172.
Publisher: World Health Organization
Published: 1959
Place of publication: Geneva
Language: eng
Number of pages: 43
Subjects: Biological Factors; Standards; Pharmaceutical Preparations
Notes: Originally issued in mimeographed form as document WHO/BS/450.

Includes bibliographical references.