APA استشهاد

Soberon, P. (2013). Problem-solving methods in combinatorics: An approach to olympiad problems. Birkhauser.

استشهاد بنمط شيكاغو

Soberon, Pablo. Problem-solving Methods in Combinatorics: An Approach to Olympiad Problems. London: Birkhauser, 2013.

MLA استشهاد

Soberon, Pablo. Problem-solving Methods in Combinatorics: An Approach to Olympiad Problems. Birkhauser, 2013.