Martin Fey, W. c. b. J. H. (2012). Soils of South Africa (1.). Cambridge University Press.
Čikaški stil citiranja (17. izdanje)Martin Fey, With contributions by Jeff Hughes. Soils of South Africa. 1. Cambridge University Press, 2012.
MLA način citiranja (8. izdanje)Martin Fey, With contributions by Jeff Hughes. Soils of South Africa. 1. Cambridge University Press, 2012.
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