Dyfyniad APA

NEWSON, M., & HANWELL, J. (1982). Systematic physical geography. Macmillan Education Limited.

Dyfyniad Arddull Chicago

NEWSON, Malcolm, and James HANWELL. Systematic Physical Geography. Houndmills: Macmillan Education Limited, 1982.

Dyfyniad MLA

NEWSON, Malcolm, and James HANWELL. Systematic Physical Geography. Macmillan Education Limited, 1982.

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