Dyfyniad APA

Cohan, S. M. (2006). Business principles of landscape contracting. New Jersey: Pearson.

Dyfyniad Arddull Chicago

Cohan, Steven M. Business Principles of Landscape Contracting. New Jersey: Pearson, 2006.

Dyfyniad MLA

Cohan, Steven M. Business Principles of Landscape Contracting. New Jersey: Pearson, 2006.

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