6 1 10 Sinek, Simon Primary Author mixed material 9780241295595 New York Penguin Business 2019 22311.jpg.jpg mixed material 0803925301 New Delhi Sage Publications 1986 give respect, get results Holoviak, Stephen J. Primary Author mixed material 0201633337 Massachusetts Addison-Wesley Publishing Company 1993 Basic skills for management success Williams, Frederick Primary Author mixed material 0132941570 Englewood Cliffs, New Jersey Prentice Hall 1983 Sigband, Norman B. Primary Author mixed material 0673182681 Illinois Scott, Foresman and Company 1986 Mccall, Ian Primary Author mixed material 0471920266 Chichester John Wiley &Sons 1990