APA Style

Guenther, E., Ketaren, S. (1987). Minyak atsiri Jilid 1 = essential oils (jilid 1). Jakarta: UI Publishing.

MLA Style

Guenther, Ernest., Ketaren, S.. "Minyak atsiri Jilid 1 = essential oils". jilid 1 Jakarta: UI Publishing, 1987. Text.