APA (7th ed.) Citation

Youngken, H. W. Tratado de farmacognosia.

Chicago Style (17th ed.) Citation

Youngken, Heber W. Tratado De Farmacognosia.

MLA (8th ed.) Citation

Youngken, Heber W. Tratado De Farmacognosia.

Warning: These citations may not always be 100% accurate.