Cita APA (7th ed.)

KRULIK, S. (1971). A hand book of aids for teaching junior-senior highschool mathematics. W.B. Saunders.

Cita Chicago (17th ed.)

KRULIK, Stephen. A Hand Book of Aids for Teaching Junior-senior Highschool Mathematics. Philadelpia: W.B. Saunders, 1971.

Cita MLA (9th ed.)

KRULIK, Stephen. A Hand Book of Aids for Teaching Junior-senior Highschool Mathematics. W.B. Saunders, 1971.

Atenció: Aquestes cites poden no estar 100% correctes.