Citazione Stile APA (7a Edizione)

Sobolewski, P., & MacDonald, J. (1985). Let's look at the 19th century. Gill and Macmillan.

Citazione stile Chigago Style (17a edizione)

Sobolewski, Peter, e John MacDonald. Let's Look at the 19th Century. Dublin: Gill and Macmillan, 1985.

Citatione MLA (9a ed.)

Sobolewski, Peter, e John MacDonald. Let's Look at the 19th Century. Gill and Macmillan, 1985.