Citazione Stile APA (7a Edizione)

Johanneson, B. (2011). Focus history: CAPS (1. publ.). Maskew Miller Longman.

Citazione stile Chigago Style (17a edizione)

Johanneson, Barbara. Focus History: CAPS. 1. publ. Pinelands, Cape Town: Maskew Miller Longman, 2011.

Citatione MLA (9a ed.)

Johanneson, Barbara. Focus History: CAPS. 1. publ. Maskew Miller Longman, 2011.