Dyfyniad APA

SCORER R S. (1973). POLLUTION IN THE AIR: PROBLEM, POLICIES, AND PRIORITIES. ROUTLEDGE & KOGAN PRESS.

Dyfyniad Arddull Chicago

SCORER R S. POLLUTION IN THE AIR: PROBLEM, POLICIES, AND PRIORITIES. LONDON: ROUTLEDGE & KOGAN PRESS, 1973.

Dyfyniad MLA

SCORER R S. POLLUTION IN THE AIR: PROBLEM, POLICIES, AND PRIORITIES. ROUTLEDGE & KOGAN PRESS, 1973.

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