TY - GEN DA - 1920 ID - 10337 JF - Papers On Engineering Subject L1 - https://library.imarest.org/record/10337/files/v1b01p01.pdf L2 - https://library.imarest.org/record/10337/files/v1b01p01.pdf L4 - https://library.imarest.org/record/10337/files/v1b01p01.pdf LK - https://library.imarest.org/record/10337/files/v1b01p01.pdf PY - 1920 T1 - Contents TI - Contents UR - https://library.imarest.org/record/10337/files/v1b01p01.pdf VL - 1 Y1 - 1920 ER -