Lua APA (7ú heag.)

Villee, C. A. (1992). Biologia (2 ed.). Interamericana - McGraw-Hill.

Lua i Stíl Chicago (17ú heag.)

Villee, Claude A. Biologia. 2 ed. mexico D F: Interamericana - McGraw-Hill, 1992.

Lua MLA (9ú heag.)

Villee, Claude A. Biologia. 2 ed. Interamericana - McGraw-Hill, 1992.

Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.