APA Style

Bernstein, A, L. et al (1975). Trouble-shooting mathematics skils (1975) . Canada: Holt, rinehart and winston of canada, limited toronto.

MLA Style

Bernstein, Allen, L.. et al. "Trouble-shooting mathematics skils (1975)". Canada: Holt, rinehart and winston of canada, limited toronto, 1975. Text.