Dyfyniad APA

Tillery, B. W. (2001). Integrated science. McGraw-Hill.

Dyfyniad Arddull Chicago

Tillery, Bill W. Integrated Science. McGraw-Hill, 2001.

Dyfyniad MLA

Tillery, Bill W. Integrated Science. McGraw-Hill, 2001.

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