Guide to the HVAC/R certification and competency tests /
Featherstone, Robert
Guide to the HVAC/R certification and competency tests / Robert Featherstone, Jesse Riojas - 2nd ed. - Upper Saddle River, N.J. : Prentice Hall, c2005 - vii, 340 p. : ill. ; 28 cm.
0131149490 (pbk.)
Heating--Problems, exercises, etc.--Problems, exercises, etc.
Air conditioning--Problems, exercises, etc.
Ventilation--Problems,exercises, etc.
Mechanics (Persons)--Certification--United States
Guide to the HVAC/R certification and competency tests / Robert Featherstone, Jesse Riojas - 2nd ed. - Upper Saddle River, N.J. : Prentice Hall, c2005 - vii, 340 p. : ill. ; 28 cm.
0131149490 (pbk.)
Heating--Problems, exercises, etc.--Problems, exercises, etc.
Air conditioning--Problems, exercises, etc.
Ventilation--Problems,exercises, etc.
Mechanics (Persons)--Certification--United States