Cita APA (7th ed.)

RAVEN A D. (1971). PROFIT IMPROVEMETNT BY VALUE ANALYSIS,VALUE ENG.&PUR.PRICE ANALYSIS. CASSELL.

Cita Chicago (17th ed.)

RAVEN A D. PROFIT IMPROVEMETNT BY VALUE ANALYSIS,VALUE ENG.&PUR.PRICE ANALYSIS. LONDON: CASSELL, 1971.

Cita MLA (9th ed.)

RAVEN A D. PROFIT IMPROVEMETNT BY VALUE ANALYSIS,VALUE ENG.&PUR.PRICE ANALYSIS. CASSELL, 1971.