Cita APA (7a ed.)

Villareal, S. A. The tertiary alkaloids of two Philippine species of the Berberidaceae: Berberis barandana Vidal and Mahonia philippinensis Takeda.

Cita Chicago Style (17a ed.)

Villareal, Susan Andaya. The Tertiary Alkaloids of Two Philippine Species of the Berberidaceae: Berberis Barandana Vidal and Mahonia Philippinensis Takeda.

Cita MLA (9a ed.)

Villareal, Susan Andaya. The Tertiary Alkaloids of Two Philippine Species of the Berberidaceae: Berberis Barandana Vidal and Mahonia Philippinensis Takeda.

Precaución: Estas citas no son 100% exactas.