Lua APA (7ú heag.)

Longenecker, J. G. (1987). Small-business management (7th ed.). South-Western Pub. Co.

Lua i Stíl Chicago (17ú heag.)

Longenecker, Justin Gooderl. Small-business Management. 7th ed. Cincinnati: South-Western Pub. Co, 1987.

Lua MLA (9ú heag.)

Longenecker, Justin Gooderl. Small-business Management. 7th ed. South-Western Pub. Co, 1987.

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