Citazione Stile APA (7a Edizione)

HAMMOND ALLEN. (1998). WHICH WORLD? SCENARIOS FOR THE 21ST CENTURY. EARTHSCAN.

Citazione stile Chigago Style (17a edizione)

HAMMOND ALLEN. WHICH WORLD? SCENARIOS FOR THE 21ST CENTURY. LONDON: EARTHSCAN, 1998.

Citatione MLA (9a ed.)

HAMMOND ALLEN. WHICH WORLD? SCENARIOS FOR THE 21ST CENTURY. EARTHSCAN, 1998.