APA (7th ed.) Citation

MacEwen, A., & MacEwen, M. (1982). National parks: Conservation or cosmetics? George Allen & Unwin.

Chicago Style (17th ed.) Citation

MacEwen, Ann, and Malcolm MacEwen. National Parks: Conservation or Cosmetics? London ; Boston: George Allen & Unwin, 1982.

MLA (9th ed.) Citation

MacEwen, Ann, and Malcolm MacEwen. National Parks: Conservation or Cosmetics? George Allen & Unwin, 1982.

Warning: These citations may not always be 100% accurate.