Handscombe, R. (1989). Product management handbook: Your practical guide to improving and sustaining results. Mc Graw-Hill Book Company.
Chicago-tyylinen lähdeviittausHandscombe, Richard. Product Management Handbook: Your Practical Guide to Improving and Sustaining Results. London: Mc Graw-Hill Book Company, 1989.
MLA-viiteHandscombe, Richard. Product Management Handbook: Your Practical Guide to Improving and Sustaining Results. Mc Graw-Hill Book Company, 1989.
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