Cita APA (7a ed.)

Milner, C., & Hughes, R. E. (1968). Methods for the measurement of the primary production of grassland. International Biological Programme.

Cita Chicago Style (17a ed.)

Milner, C., y R. Elfyn Hughes. Methods for the Measurement of the Primary Production of Grassland. London: International Biological Programme, 1968.

Cita MLA (8a ed.)

Milner, C., y R. Elfyn Hughes. Methods for the Measurement of the Primary Production of Grassland. International Biological Programme, 1968.