Dyfyniad APA

N.S.W. Teachers' Federation. (1976). Sam Lewis memorial booklet. The Federation.

Dyfyniad Arddull Chicago

N.S.W. Teachers' Federation. Sam Lewis Memorial Booklet. Sydney: The Federation, 1976.

Dyfyniad MLA

N.S.W. Teachers' Federation. Sam Lewis Memorial Booklet. The Federation, 1976.

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