APA-čujuhus (7. p.)

Lesikar, R. V. (1976). BUSINESS COMMUNICATION (3rd.). RICHARD D. IRWIN ILLINUIS.

Chicago-čujuhus (17. p.)

Lesikar, Raymond V. BUSINESS COMMUNICATION. 3rd. Null: RICHARD D. IRWIN ILLINUIS, 1976.

MLA-čujuhus (9. p.)

Lesikar, Raymond V. BUSINESS COMMUNICATION. 3rd. RICHARD D. IRWIN ILLINUIS, 1976.

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