Gaya APA

Sys, . (1976). State university Of Ghent International Training Centre For Post-Graduate Soil Scienties (Part:2). Ghenit: State University Of Ghent.

Gaya MLA

Sys, . "State university Of Ghent International Training Centre For Post-Graduate Soil Scienties". Part:2 Ghenit: State University Of Ghent, 1976. Text.