Gaya APA

Eric, R., Verdoodt,Ann, . (2005). Land Evaluation Part II : Qualitative Methods in Land Evaluation . Belgium: International Training Centre for Eremology Faculty of Polytechnics Pleinlaan 2.

Gaya MLA

Eric, Ranst,Van., Verdoodt,Ann, . "Land Evaluation Part II : Qualitative Methods in Land Evaluation". Belgium: International Training Centre for Eremology Faculty of Polytechnics Pleinlaan 2, 2005. Text.