APA (7th ed.) Citation

Haines-Young, R. H., & Petch, J. R. (1986). Physical geography: Its nature and methods. Harper & Row.

Chicago Style (17th ed.) Citation

Haines-Young, Roy H., and James R. Petch. Physical Geography: Its Nature and Methods. London u.a: Harper & Row, 1986.

MLA (9th ed.) Citation

Haines-Young, Roy H., and James R. Petch. Physical Geography: Its Nature and Methods. Harper & Row, 1986.