De Souza, P. N., & Silva, J. (1998). Berkeley problems in mathematics. New York: Springer.
Trích dẫn kiểu ChicagoDe Souza, Paulo Ney., và Jorge-Nuno Silva. Berkeley Problems in Mathematics. New York: Springer, 1998.
ציטוט MLADe Souza, Paulo Ney., và Jorge-Nuno Silva. Berkeley Problems in Mathematics. New York: Springer, 1998.
אזהרה: ציטוטים אלה לעיתים לא מדויקים ב 100%.