APA Citation

(2012). Directory of health care group purchasing organizations 2013 (18th ed.). Amenia, New York: Grey House Publishing.

Chicago Style Citation

Directory of Health Care Group Purchasing Organizations 2013. 18th ed. Amenia, New York: Grey House Publishing, 2012.

MLA Citation

Directory of Health Care Group Purchasing Organizations 2013. 18th ed. Amenia, New York: Grey House Publishing, 2012.

Warning: These citations may not always be 100% accurate.