Gaya APA

Swanson, C, P., Waerden, B, V, D. (NULL). Modern algebra Vol II . New: New York: Frederick Ungar; 1940.

Gaya MLA

Swanson, Carl, P.., Waerden, B.L., Van, Der. "Modern algebra Vol II". New: New York: Frederick Ungar; 1940, NULL. Text.