00827nam a2200265 a 4500 69577 BD-RjUL 20211209081914.0 170412s1961 nyua 001 0 eng d (BD-RjUL)69789 DLC ODaWU OCoLC DLC eng eng 516.24 23 CRT 1961 Crowder, Norman A. 138269 Trigonometry : a practical course / by Norman A. Crowder and Grace C. Martin. 1st ed. Garden City, N.Y. : Doubleday, 1961. IX, 250 p. : ill. , 22 cm. A Tudor text Includes Indexes Trigonometry Problems, exercises, etc. 138719 Programmed instruction. 206089 Martin, Grace C., joint author. 138271 ddc BK 69577 69577 0 0 ddc 0 1 NFIC RUCL RUCL Reading 1962-10-31 Zeitlinger 35.00 0 516.24 CRT 1961 2017-04-12 00:00:00 C-1 2017-04-12 BK