Cita APA (7a ed.)

Widdowson, J. (1998). Earthworks: 11 - 14 geography project (1. publ.). Murray.

Cita Chicago Style (17a ed.)

Widdowson, John. Earthworks: 11 - 14 Geography Project. 1. publ. London: Murray, 1998.

Cita MLA (9a ed.)

Widdowson, John. Earthworks: 11 - 14 Geography Project. 1. publ. Murray, 1998.