Dyfyniad APA

A E Martin. (1977). Health aspects of human settlements. Geneva.

Dyfyniad Arddull Chicago

A E Martin. Health Aspects of Human Settlements. Geneva, 1977.

Dyfyniad MLA

A E Martin. Health Aspects of Human Settlements. Geneva, 1977.

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