000
00266nam a2200109 4500
008
160616s 000 0
245
_a
Introduction to the calculus of variations
100
_a
Sagan, Hand
500
_a
B42 K9
942
_c
BK
_2
BK3004
080
_a
517.97 SAG
999
_c
3004
_d
3004