TY - BOOK ID - 133903593 TI - A theory of leadership effectiveness PY - 1967 PB - New York : McGraw-Hill, DB - UniCat KW - Leadership KW - Social groups KW - Management KW - Leadership KW - Groupes, Dynamique des KW - Gestion UR - https://www.unicat.be/uniCat?func=search&query=sysid:133903593 AB - ER -