Johnson Spencer. (1998). Who Moved My Cheese: An Amazing Way to Deal with Change in Your Work & in Your LIfe. Vermillion.
Chicago-tyylinen lähdeviittausJohnson Spencer. Who Moved My Cheese: An Amazing Way to Deal with Change in Your Work & in Your LIfe. London: Vermillion, 1998.
MLA-viiteJohnson Spencer. Who Moved My Cheese: An Amazing Way to Deal with Change in Your Work & in Your LIfe. Vermillion, 1998.
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