Gaya APA

van de Graff, R. H. M.. (1978). Size of Subsoil Blocky Peds in Relation to Textural Parameters, Depth and Drainage . : s.n..

Gaya Chicago

van de Graff, R. H. M.. Size of Subsoil Blocky Peds in Relation to Textural Parameters, Depth and Drainage. : s.n., 1978. Computer Software.

Gaya MLA

van de Graff, R. H. M.. Size of Subsoil Blocky Peds in Relation to Textural Parameters, Depth and Drainage. : s.n., 1978. Computer Software.

Gaya Turabian

van de Graff, R. H. M.. Size of Subsoil Blocky Peds in Relation to Textural Parameters, Depth and Drainage. : s.n., 1978. Computer Software.