Helfert, E. (1966). Valuation: Concepts and practice. Wadsworth.
Chicago Style (17th ed.) CitationHelfert, Erich. Valuation: Concepts and Practice. Belmont, Calif: Wadsworth, 1966.
MLA (9th ed.) CitationHelfert, Erich. Valuation: Concepts and Practice. Wadsworth, 1966.
Warning: These citations may not always be 100% accurate.