APA
Acton J. R., Squire P. T., . (1985). Solving equations with physical understanding. Briston: A. Hilger.
Chicago
Acton J R, Squire P T, . 1985. Solving equations with physical understanding. Briston: A. Hilger.
Harvard
Acton J. R., Squire P. T., . (1985). Solving equations with physical understanding. Briston: A. Hilger.
MLA
Acton J R, Squire P T, . Solving equations with physical understanding. Briston: A. Hilger. 1985.