Dyfyniad APA

BROWN L R. (2000). VITAL SIGNS 2000-2001: ENVIRONMENTAL TRENDS THAT ARE SHAPING OUR FUTURE. EARTHSCAN.

Dyfyniad Arddull Chicago

BROWN L R. VITAL SIGNS 2000-2001: ENVIRONMENTAL TRENDS THAT ARE SHAPING OUR FUTURE. LONDON: EARTHSCAN, 2000.

Dyfyniad MLA

BROWN L R. VITAL SIGNS 2000-2001: ENVIRONMENTAL TRENDS THAT ARE SHAPING OUR FUTURE. EARTHSCAN, 2000.

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