MLA

Difco Manual of Dehydrated Culture Media and Reagents for Microbiological and Clinical Laboratory Procedures. 9th ed. Detroit (Mich.): Difco laboratories, 1953.

APA

(1953). DIFCO manual of dehydrated culture media and reagents for microbiological and clinical laboratory procedures. 9th ed. Detroit (Mich.): Difco laboratories.

Chicago

DIFCO Manual of Dehydrated Culture Media and Reagents for Microbiological and Clinical Laboratory Procedures. 9th ed. Detroit (Mich.): Difco laboratories, 1953.