TY  - BOOK
AU  - Alexander, Howard W.
AU  - Botts, Truman A.
AU  - Durtsd, Lincoln K.
AU  - Earl, Boyed L.
TI  - A programed course in calculus: fuctions, limits, and the derivative
SN  - NA
U1  - MAL 515 
PY  - 1968///
CY  - New York,USA
PB  - W. A. Bengamin, Inc.
ER  -