APA Style

Koysooko, R. et al (1990). Manual for Cultivation Production and Utilization of Herbal Medicines in Primary Health Care . Bangkok: Ministry of Public Health \r WHO.

MLA Style

Koysooko, Renu. et al. "Manual for Cultivation Production and Utilization of Herbal Medicines in Primary Health Care". Bangkok: Ministry of Public Health \r WHO, 1990. print.