Ballance, R., & Sinclair, S. (1983). Collapse and survival: Industry strategies in a changing world. অষষবহ ্ টহরিহ.
Tohutoru Kātū Chicago (17th ed.)Ballance, Robert, me Stuart Sinclair. Collapse and Survival: Industry Strategies in a Changing World. London: অষষবহ ্ টহরিহ, 1983.
Tohutoro MLA (9th ed.)Ballance, Robert, me Stuart Sinclair. Collapse and Survival: Industry Strategies in a Changing World. অষষবহ ্ টহরিহ, 1983.
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