APA citiranje

Heijman, W. J. M. (1991). Depletable resources and the economy. Wageningen: Landbouwuniv. Wageningen Agricultural University.

Trích dẫn kiểu Chicago

Heijman, Willem Johannes Maria. Depletable Resources and the Economy. Wageningen: Landbouwuniv. Wageningen Agricultural University, 1991.

MLA citiranje

Heijman, Willem Johannes Maria. Depletable Resources and the Economy. Wageningen: Landbouwuniv. Wageningen Agricultural University, 1991.