Cita APA

Clymo, R. S., Golterman, H. L., & Ohnstad, M. A. M. (1978). Methods for physical and chemical analysis of fresh waters (Ed.2.).

Citación estilo Chicago

Clymo, R S., H L. Golterman, and M A M. Ohnstad. Methods for Physical and Chemical Analysis of Fresh Waters. Ed.2. Oxford, Blackwell, 1978.

Cita MLA

Clymo, R S., et al. Methods for Physical and Chemical Analysis of Fresh Waters. Ed.2. 1978.