APA-referens (7:e uppl.)

Colley, B. C. (1999). Practical manual of land development (3rd ed.). McGraw-Hill.

Chicago-referens (17:e uppl.)

Colley, B. C. Practical Manual of Land Development. 3rd ed. New York: McGraw-Hill, 1999.

MLA-referens (9:e uppl.)

Colley, B. C. Practical Manual of Land Development. 3rd ed. McGraw-Hill, 1999.