Dyfyniad APA

Pearson, N. P., & Butler, L. (1969). Instructional materials center: Selected readings. Burgess Publishing.

Dyfyniad Arddull Chicago

Pearson, Neville P., and L. Butler. Instructional Materials Center: Selected Readings. Minneapolis, MN: Burgess Publishing, 1969.

Dyfyniad MLA

Pearson, Neville P., and L. Butler. Instructional Materials Center: Selected Readings. Burgess Publishing, 1969.

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