Schaum`s outline of theory and problems of differential equations in SI metric units. Ed 1 - Frank Ayres (Singapore McGraw Hill, 1981)
Frank Ayres: Schaum`s outline of theory and problems of differential equations in SI metric units. Ed 1. (Asian student Ed) Singapore. McGraw Hill, 1981. 0-07-099006-9--(517.38AYR)
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