TY - BOOK AU - Featherstone,Robert AU - Riojas,Jesse R. TI - Guide to the HVAC/R certification and competency tests SN - 0131149490 AV - TH7015 .F42 2005 PY - 2005///] CY - Upper Saddle River, N. J. PB - Prentice Hall KW - Heating KW - Problems, exercises, etc KW - Air conditioning KW - Ventilation KW - Mechanics (Persons) KW - Certification KW - United States ER -