APA
Petrie P., . (1989). Communicating with children & adults. Edward Arnold, London: .
Chicago
Petrie Pat, . 1989. Communicating with children & adults. Edward Arnold, London: .
Harvard
Petrie P., . (1989). Communicating with children & adults. Edward Arnold, London: .
MLA
Petrie Pat, . Communicating with children & adults. Edward Arnold, London: . 1989.