Cita APA (7th ed.)

JOHNSTON R J. (1986). A WORLD IN CRISIS ? GEOGRAPHICAL PERSPECTIVES. BASIL BLACKWELL LIMITED.

Cita Chicago (17th ed.)

JOHNSTON R J. A WORLD IN CRISIS ? GEOGRAPHICAL PERSPECTIVES. OXFORD U K: BASIL BLACKWELL LIMITED, 1986.

Cita MLA (9th ed.)

JOHNSTON R J. A WORLD IN CRISIS ? GEOGRAPHICAL PERSPECTIVES. BASIL BLACKWELL LIMITED, 1986.