APA

Dickson Khwarizmi, . (1991). Biographical dictionary of mathematicians : reference biographies from the dictionary of scientific biography volume 2. New York: Charles scribner's Sons.

Chicago

Dickson Khwarizmi, . 1991. Biographical dictionary of mathematicians : reference biographies from the dictionary of scientific biography volume 2. New York: Charles scribner's Sons.

Harvard

Dickson Khwarizmi, . (1991). Biographical dictionary of mathematicians : reference biographies from the dictionary of scientific biography volume 2. New York: Charles scribner's Sons.

MLA

Dickson Khwarizmi, . Biographical dictionary of mathematicians : reference biographies from the dictionary of scientific biography volume 2. New York: Charles scribner's Sons. 1991.