TY - BOOK TI - College algebra and trigonometry 2nd ed AU - Hart, William Le Roy , 1892-. AU - Waits, Bert K., joint author. SN - 0669014605 PB - D. C. Heath PP - Lexington, Mass. : D. C. Heath , c1978. PY - 1978 UR - https://library.korea.ac.kr/detail/?cid=CAT000045316516&ctype=m