00410nam a2200145Ia 450000500170000000800460001703700120006304000210007504100130009608400190010910000190012824500610014726000470020830000090025520250508161646.0008  250505s9999    xx            000 0 eng d  aTextual  aFEDL bengcFEDL  aeng2eng  a514, DROqFEDL  aDrooyan Irving 0aTeacher's manual for trigonometry : An analytic approach  aNew York, USAbThe Macmillan Companyc1967  a56p.