Citazione Stile APA (7a Edizione)

Harwood, G. B. (1979). Programmed learning aid for quantitative: Methods: with applications in accounting and b. Learning systems.

Citazione stile Chigago Style (17a edizione)

Harwood, Gordon B. Programmed Learning Aid for Quantitative: Methods: With Applications in Accounting and B. Homewood, Ill: Learning systems, 1979.

Citatione MLA (9a ed.)

Harwood, Gordon B. Programmed Learning Aid for Quantitative: Methods: With Applications in Accounting and B. Learning systems, 1979.