APA (7th ed.) Citation

SLEEN, L. v. (1974). Physiohgraphy and soils I. lecture notes. ITC.

Chicago Style (17th ed.) Citation

SLEEN, L.A. van. Physiohgraphy and Soils I. Lecture Notes. ITC, 1974.

MLA (8th ed.) Citation

SLEEN, L.A. van. Physiohgraphy and Soils I. Lecture Notes. ITC, 1974.

Warning: These citations may not always be 100% accurate.