Citazione Stile APA (7a Edizione)

Fyfe, J., & Val, J. (1970). Stellen wir Fragen (2. impr. (with amendments).). Univ. of London Press.

Citazione stile Chigago Style (17a edizione)

Fyfe, James, e James Val. Stellen Wir Fragen. 2. impr. (with amendments). London: Univ. of London Press, 1970.

Citatione MLA (9a ed.)

Fyfe, James, e James Val. Stellen Wir Fragen. 2. impr. (with amendments). Univ. of London Press, 1970.