Cita APA (7th ed.)

Santos, P. S. Antibiotic constituents of the Philippine lichen, Usnea, Sp.

Cita Chicago (17th ed.)

Santos, Patrocinio Sevilla. Antibiotic Constituents of the Philippine Lichen, Usnea, Sp. 1965.

Cita MLA (9th ed.)

Santos, Patrocinio Sevilla. Antibiotic Constituents of the Philippine Lichen, Usnea, Sp.

Atenció: Aquestes cites poden no estar 100% correctes.