GILMORE, J. V. (1974). The productive personality. Albion Pub. Co.
Lua i Stíl Chicago (17ú heag.)GILMORE, John V. The Productive Personality. San Francisco: Albion Pub. Co, 1974.
Lua MLA (9ú heag.)GILMORE, John V. The Productive Personality. Albion Pub. Co, 1974.
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