Gaya APA

Ballance, R, &, S, S. (1983). Collapse and Survival : Industry Strategies in a Changing World . London: George Allen & Unwin.

Gaya MLA

Ballance, RH., &, Sinclair,, SW.. "Collapse and Survival : Industry Strategies in a Changing World". London: George Allen & Unwin, 1983. Text.