|
1
|
|
|
|
QA304
.S3
|
Integral and differential calculus : an intuitive approach
|
New York, [ United States ] : John Wiley and Sons , 1962
|
Sagan, Hans
|
|
3053
|
|
2
|
|
|
|
QC20.7
.B6
S2
|
Boundary and Eingenvalue problems in mathematical physics/Hans Sagan
|
New York, [ United States ] : John Wiley and Sons , 1961
|
Sagan, Hans
|
|
83098
|