Cita APA (7th ed.)

Pickford, J. (1988). Developing world water (3a. ed.). Grosvenor Press International.

Cita Chicago (17th ed.)

Pickford, John. Developing World Water. 3a. ed. Londres: Grosvenor Press International, 1988.

Cita MLA (9th ed.)

Pickford, John. Developing World Water. 3a. ed. Grosvenor Press International, 1988.