Cita APA (7th ed.)

Braat, L. C., & Lierop, W. F. J. v. (1987). Economic-ecological modeling. North-Holland.

Cita Chicago (17th ed.)

Braat, Leon C., i Wal F. J. van Lierop. Economic-ecological Modeling. Amsterdam: North-Holland, 1987.

Cita MLA (9th ed.)

Braat, Leon C., i Wal F. J. van Lierop. Economic-ecological Modeling. North-Holland, 1987.