APA (7e ed.) Bronvermelding

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

Chicago (17e ed.) Bronvermelding

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

MLA (9e ed.) Bronvermelding

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