Gaya APA

Swanson, C, P. (NULL). Encyclopedia of science and technology volume 2 bab cet an international ì reference work in fifteen volumes including index . Philippines:: Philippines: mcGrw Hill; 1960.

Gaya MLA

Swanson, Carl, P.. "Encyclopedia of science and technology volume 2 bab cet an international ì reference work in fifteen volumes including index". Philippines:: Philippines: mcGrw Hill; 1960, NULL. Text.