APA-referens (7:e uppl.)

Ayres, Q. C. (1939). Land drainage and reclamation (2a. ed.). McGraw-Hill.

Chicago-referens (17:e uppl.)

Ayres, Quincy Claude. Land Drainage and Reclamation. 2a. ed. Nueva York: McGraw-Hill, 1939.

MLA-referens (9:e uppl.)

Ayres, Quincy Claude. Land Drainage and Reclamation. 2a. ed. McGraw-Hill, 1939.