Cita APA (7a ed.)

NEWSON, M., & HANWELL, J. (1982). Systematic physical geography. Macmillan Education Limited.

Cita Chicago Style (17a ed.)

NEWSON, Malcolm, y James HANWELL. Systematic Physical Geography. Houndmills: Macmillan Education Limited, 1982.

Cita MLA (9a ed.)

NEWSON, Malcolm, y James HANWELL. Systematic Physical Geography. Macmillan Education Limited, 1982.