Cita APA (7th ed.)

Fien, J., & Gerber, R. (1988). Teaching geography for a better world. Oliver & Boyd.

Cita Chicago (17th ed.)

Fien, John, i Rod Gerber. Teaching Geography for a Better World. Edinburgh: Oliver & Boyd, 1988.

Cita MLA (9th ed.)

Fien, John, i Rod Gerber. Teaching Geography for a Better World. Oliver & Boyd, 1988.