Cita APA (7th ed.)

Eyles, J. (1988). Research in human geography: Introduction and investigation. Blackwell.

Cita Chicago (17th ed.)

Eyles, John. Research in Human Geography: Introduction and Investigation. Oxford: Blackwell, 1988.

Cita MLA (9th ed.)

Eyles, John. Research in Human Geography: Introduction and Investigation. Blackwell, 1988.