Dyfyniad APA

(2001). Problem is. University of the Philippines Press.

Dyfyniad Arddull Chicago

Problem Is. Quezon City: University of the Philippines Press, 2001.

Dyfyniad MLA

Problem Is. University of the Philippines Press, 2001.

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