APA
Bootle Valerie & Nailon Philip, . (1970). A bibliography of hotel and catering operation. New university education, London: .
Chicago
Bootle Valerie & Nailon Philip, . 1970. A bibliography of hotel and catering operation. New university education, London: .
Harvard
Bootle Valerie & Nailon Philip, . (1970). A bibliography of hotel and catering operation. New university education, London: .
MLA
Bootle Valerie & Nailon Philip, . A bibliography of hotel and catering operation. New university education, London: . 1970.