APA ציטוט

Quisumbing, E. A., & Valmayor, H. L. (1981). The complete writings of Dr. Eduardo A. Quisumbing on Philippine orchids. Eugenio Lopez Foundation.

Chicago Style (17th ed.) Citation

Quisumbing, Eduardo A., and Helen L. Valmayor. The Complete Writings of Dr. Eduardo A. Quisumbing on Philippine Orchids. Pasig: Eugenio Lopez Foundation, 1981.

ציטוט MLA

Quisumbing, Eduardo A., and Helen L. Valmayor. The Complete Writings of Dr. Eduardo A. Quisumbing on Philippine Orchids. Eugenio Lopez Foundation, 1981.