APA Style
Ph. D. Guenther, Ernest. (1949).
Essential Oils .
New York:
D. Van Nostrand Company, INC..
Chicago Style
Ph. D. Guenther, Ernest.
Essential Oils.
New York:
D. Van Nostrand Company, INC.,
1949.
Texts.
MLA Style
Ph. D. Guenther, Ernest.
Essential Oils.
New York:
D. Van Nostrand Company, INC.,
1949.
Texts.
Turabian Style
Ph. D. Guenther, Ernest.
Essential Oils.
New York:
D. Van Nostrand Company, INC.,
1949.
Texts.