TY - BOOK AU - McCroskey, James C. AU - ED - ED - ED - ED - SN - 0134954742 (pbk.) SN - 2 PY - 0000///46 CY - PB - KW - KW - 2 KW - 0 KW - 6 KW - 20 KW - Oral communication N1 - Includes bibliographical references and indexes; 5 ER -