APA Style

APHA, . (1979). STANDERD METHODS FOR THE EXAMINATION OF WATER AND WASTEWATER (Twelvth Edition). New York: AMRICAN PUBLIC HEALTH ASSOCIATION INC.

MLA Style

APHA, . "STANDERD METHODS FOR THE EXAMINATION OF WATER AND WASTEWATER". Twelvth Edition New York: AMRICAN PUBLIC HEALTH ASSOCIATION INC, 1979. Text.