00291nam a2200109Ia 450000500170000000800410001708200140005810000250007224500340009726000420013130000080017320260224040812.0260224s9999||||xx |||||||||||||| ||und||  a621.4 PUR  aJudson Alfred Purvis 0aAll about small gas engines :  aChicago: Goodheart-Willcox Co. c1963  a304