00326nam a2200133Ia 4500 230312s9999||||xx |||||||||||||| ||und|| 629.132 BLA-E Blank;Lelang Engineering Economy McGraw Hill 2005 770 Aviation Engineering/Technology BK 13021 13021 0 0 ddc 0 0 SIRC SIRC 2023-03-13 0 629.132 BLA-E 13153 2023-03-13 2023-03-13 BK