Kirby, D. A., & Robinson, H. (1981). Geography of Britain: Perspectives and problems. Univ. Tutorial Press.
Citazione stile Chigago Style (17a edizione)Kirby, David A., e Harry Robinson. Geography of Britain: Perspectives and Problems. Slough: Univ. Tutorial Press, 1981.
Citatione MLA (9a ed.)Kirby, David A., e Harry Robinson. Geography of Britain: Perspectives and Problems. Univ. Tutorial Press, 1981.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.