(1998). Degree mathematics. Biswas.
Chicago Style (17th ed.) ZitazioaDegree Mathematics. Calcuta: Biswas, 1998.
MLA (9th ed.) ZitazioaDegree Mathematics. Biswas, 1998.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.
(1998). Degree mathematics. Biswas.
Chicago Style (17th ed.) ZitazioaDegree Mathematics. Calcuta: Biswas, 1998.
MLA (9th ed.) ZitazioaDegree Mathematics. Biswas, 1998.