Dyfyniad APA

Wheeler, E. (1970). Tested sentences that sell. wilco publishing house.

Dyfyniad Arddull Chicago

Wheeler, Elmer. Tested Sentences That Sell. Bombay: wilco publishing house, 1970.

Dyfyniad MLA

Wheeler, Elmer. Tested Sentences That Sell. wilco publishing house, 1970.

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