Dyfyniad APA

Schultz, F. (1998). Annual editions: Human development 98/99 (26th ed.). Dushkin/McGraw-Hill.

Dyfyniad Arddull Chicago

Schultz, Fred. Annual Editions: Human Development 98/99. 26th ed. Guilford, Conn.: Dushkin/McGraw-Hill, 1998.

Dyfyniad MLA

Schultz, Fred. Annual Editions: Human Development 98/99. 26th ed. Dushkin/McGraw-Hill, 1998.

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