Dyfyniad APA
Brown, J. W., Harcleroad, F. F., & Lewis, R. B. (1977). AV instruction--technology, media, and methods (5th ed.). McGraw-Hill.
Dyfyniad Arddull Chicago
Brown, James W., Fred F. Harcleroad, and Richard Byrd Lewis. AV Instruction--technology, Media, and Methods. 5th ed. New York: McGraw-Hill, 1977.
Dyfyniad MLA
Brown, James W., et al. AV Instruction--technology, Media, and Methods. 5th ed. McGraw-Hill, 1977.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.