APA aipamena

CROSBY PHILIP B. (1980). QUALITY IS FREE THE ART OF MAKING QUALITY CERTAIN. MENTOR BOOKS.

Chicago Style aipamena

CROSBY PHILIP B. QUALITY IS FREE THE ART OF MAKING QUALITY CERTAIN. NEW YORK: MENTOR BOOKS, 1980.

MLA aipamena

CROSBY PHILIP B. QUALITY IS FREE THE ART OF MAKING QUALITY CERTAIN. MENTOR BOOKS, 1980.