Gaya APA

Swanson, C, P. (1974). East java Industrial directory 1973 . Surabaya: Surabaya: East java Invesment Office; 1974.

Gaya MLA

Swanson, Carl, P.. "East java Industrial directory 1973". Surabaya: Surabaya: East java Invesment Office; 1974, 1974. Text.