Dyfyniad APA

Worcester, D. C. (1921). The Philippines, past and present. s.n.

Dyfyniad Arddull Chicago

Worcester, D C. The Philippines, Past and Present. s.l: s.n, 1921.

Dyfyniad MLA

Worcester, D C. The Philippines, Past and Present. s.n, 1921.

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