Cita APA

Hellmann, H., Hemmings, B. D., & Pike, E. B. (1987). Analysis of surface waters. E. Horwood.

Citación estilo Chicago

Hellmann, Hubert, B. D. Hemmings, and E. B. Pike. Analysis of Surface Waters. Chichester: E. Horwood, 1987.

Cita MLA

Hellmann, Hubert, et al. Analysis of Surface Waters. E. Horwood, 1987.