Dyfyniad APA

BUCKMAN Harry O. (1969). The nature and properties of soils. (7th ed.). Macmillan Company.

Dyfyniad Arddull Chicago

BUCKMAN Harry O. The Nature and Properties of Soils. 7th ed. London: Macmillan Company, 1969.

Dyfyniad MLA

BUCKMAN Harry O. The Nature and Properties of Soils. 7th ed. Macmillan Company, 1969.

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