Gaya APA

Swanson, C, P., Nathan, I, R. (NULL). Science in america a documentary history 1900-1939 . Chicago:: Chicago: The University of Chicago Press; 1981.

Gaya MLA

Swanson, Carl, P.., Nathan, I., Reingold,. "Science in america a documentary history 1900-1939". Chicago:: Chicago: The University of Chicago Press; 1981, NULL. Text.