Gaya APA

Swanson, C, P., Levy, L. (NULL). Space its impact on man and society . New: New York: WW. Norton & Company; 1965.

Gaya MLA

Swanson, Carl, P.., Levy, Lillian. "Space its impact on man and society". New: New York: WW. Norton & Company; 1965, NULL. Text.