APA
Petts G. &. F., . (1985). Revers and landscape. Great Britain: Edward Arnold.
Chicago
Petts Geoff & Foster.Ian, . 1985. Revers and landscape. Great Britain: Edward Arnold.
Harvard
Petts G. &. F., . (1985). Revers and landscape. Great Britain: Edward Arnold.
MLA
Petts Geoff & Foster.Ian, . Revers and landscape. Great Britain: Edward Arnold. 1985.