Rabago, L. M. (1973). Principles of biology. Abiva Pub. House.
Lua i Stíl Chicago (17ú heag.)Rabago, Lilia Malabonga. Principles of Biology. Manila: Abiva Pub. House, 1973.
Lua MLA (9ú heag.)Rabago, Lilia Malabonga. Principles of Biology. Abiva Pub. House, 1973.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.