IATME bulletin
UNESCO
International Association of Trrestrial Manetism and Electricity
edited by J. W. Joyce
UNESCO 1954 IATME bulletin no. 14
所蔵館3館
by J. Bartels and J. Veldkamp
UNESCO
1954
IATME bulletin
no. 12b,
1948 , 1949 , 1952
所蔵館2館