Cita APA (7th ed.)

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

Cita Chicago (17th ed.)

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

Cita MLA (9th ed.)

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