Dyfyniad APA

MATHIESON, A., & WALL, G. (1982). Tourism: Economic, physical and social impacts. Longman.

Dyfyniad Arddull Chicago

MATHIESON, Alister, and Geoffrey WALL. Tourism: Economic, Physical and Social Impacts. London: Longman, 1982.

Dyfyniad MLA

MATHIESON, Alister, and Geoffrey WALL. Tourism: Economic, Physical and Social Impacts. Longman, 1982.

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