W.G, B. (1973). Decisions, Strategies And New Ventures W.g. Byrnes Dan B.k. Chesterton. George Allen and unwin LTD.
Lua i Stíl Chicago (17ú heag.)W.G, BYRNES. Decisions, Strategies And New Ventures W.g. Byrnes Dan B.k. Chesterton. George Allen and unwin LTD, 1973.
Lua MLA (8ú heag.)W.G, BYRNES. Decisions, Strategies And New Ventures W.g. Byrnes Dan B.k. Chesterton. George Allen and unwin LTD, 1973.
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