Cita APA (7a ed.)

Beek, K. J. (1978). Land evaluation for agricultural development. International Institute for Land Reclamation and Improvement.

Cita Chicago Style (17a ed.)

Beek, K. J. Land Evaluation for Agricultural Development. Wageningen: International Institute for Land Reclamation and Improvement, 1978.

Cita MLA (8a ed.)

Beek, K. J. Land Evaluation for Agricultural Development. International Institute for Land Reclamation and Improvement, 1978.