APA aipamena

Covington, G. A. (1997). Access By Design George A. Covington, Bruce Hannah. Van Nostrand Reinhold.

Chicago Style aipamena

Covington, George A. Access By Design George A. Covington, Bruce Hannah. Van Nostrand Reinhold, 1997.

MLA aipamena

Covington, George A. Access By Design George A. Covington, Bruce Hannah. Van Nostrand Reinhold, 1997.

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