Johnson, R. (1990). Profits through people: How to develop your staff to give you more.
Citace podle Chicago (17th ed.)Johnson, Ron. Profits Through People: How to Develop Your Staff to Give You More. London, hutchinson Ltd, 1990.
Citace podle MLA (9th ed.)Johnson, Ron. Profits Through People: How to Develop Your Staff to Give You More. 1990.
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