Gaya APA

Guenther, E. (1949). The essential oils : Individual essential oils of the plant families rutaceae and labiatae vol.3 (1). Canada: D. Van Nostrand Company, Inc.

Gaya MLA

Guenther, Ernest. "The essential oils : Individual essential oils of the plant families rutaceae and labiatae vol.3". 1 Canada: D. Van Nostrand Company, Inc, 1949. Text.