TY - GEN DA - 1927 ID - 10421 JF - Papers On Engineering Subject L1 - https://library.imarest.org/record/10421/files/v3b08p09.pdf L2 - https://library.imarest.org/record/10421/files/v3b08p09.pdf L4 - https://library.imarest.org/record/10421/files/v3b08p09.pdf LK - https://library.imarest.org/record/10421/files/v3b08p09.pdf PY - 1927 T1 - Notes TI - Notes UR - https://library.imarest.org/record/10421/files/v3b08p09.pdf VL - 3 Y1 - 1927 ER -