LWJ Owler & JL Brown. (1990). Costing Simplified: Wheldon's (6th.). Pitman Publishing.
Chicago Style (17th ed.) CitationLWJ Owler and JL Brown. Costing Simplified: Wheldon's. 6th. London: Pitman Publishing, 1990.
MLA (9th ed.) CitationLWJ Owler and JL Brown. Costing Simplified: Wheldon's. 6th. Pitman Publishing, 1990.
Warning: These citations may not always be 100% accurate.