TY  - BOOK
AU  - Sagan,Hans
TI  - Advanced calculus: real-valued functions of a real variable and vector-valued functions of a vector variable 
SN  - 0395170907 :
U1  - 517 
PY  - 1974///
CY  - Boston
PB  - Houghton Mifflin
KW  - Calculus
KW  - Functions of real variables
KW  - Vector valued functions
N1  - Includes bibliographical references and index
ER  -