Dyfyniad APA

Avery, T. E., & Berlin, G. L. (1985). Interpretation of aerial photographs (4th ed.). Macmillan.

Dyfyniad Arddull Chicago

Avery, Thomas Eugene, and Graydon Lennis Berlin. Interpretation of Aerial Photographs. 4th ed. New York: Macmillan, 1985.

Dyfyniad MLA

Avery, Thomas Eugene, and Graydon Lennis Berlin. Interpretation of Aerial Photographs. 4th ed. Macmillan, 1985.

Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.