APA
Hunter J. A. H., . (1980). Challenging mathematical teasers. New York: Dover Publications.
Chicago
Hunter J A H, . 1980. Challenging mathematical teasers. New York: Dover Publications.
Harvard
Hunter J. A. H., . (1980). Challenging mathematical teasers. New York: Dover Publications.
MLA
Hunter J A H, . Challenging mathematical teasers. New York: Dover Publications. 1980.