Cita APA (7th ed.)

Reading, N., & Speyer, D. E. (2006). Cambrian fans.

Cita Chicago (17th ed.)

Reading, Nathan, i David E. Speyer. Cambrian Fans. 2006.

Cita MLA (9th ed.)

Reading, Nathan, i David E. Speyer. Cambrian Fans. 2006.