Gaya APA

Swanson, C, P. (NULL). Encyclopedia of science and technology volume 9 nai pep . Philippines:: Philippines: McGrw Hill Book Co.Inc.; 1960.

Gaya MLA

Swanson, Carl, P.. "Encyclopedia of science and technology volume 9 nai pep". Philippines:: Philippines: McGrw Hill Book Co.Inc.; 1960, NULL. Text.