APA
Crone G. R., Royal Geographical Society (1830-1995) & John Murray (Londyn). (1951). Modern geographers an outline of progress in geography since 1800 A.D. London: The Royal Geographical Society.
Chicago
Crone Gerald Roe, Royal Geographical Society (1830-1995) and John Murray (Londyn). 1951. Modern geographers an outline of progress in geography since 1800 A.D. London: The Royal Geographical Society.
Harvard
Crone G. R., Royal Geographical Society (1830-1995) and John Murray (Londyn). (1951). Modern geographers an outline of progress in geography since 1800 A.D. London: The Royal Geographical Society.
MLA
Crone Gerald Roe, Royal Geographical Society (1830-1995) and John Murray (Londyn). Modern geographers an outline of progress in geography since 1800 A.D. London: The Royal Geographical Society. 1951.
TekstSzczegóły wydania: London : The Royal Geographical Society : John Murray, 1951.Opis: 55, [1] s., [4] k. tabl. : il. ; 22 cmTyp zawartości: 
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