Citazione Stile APA (7a Edizione)

Horniblow, E. C. T., & Howard, N. (1953). Europe including the British Isles (15. impr.). Grant Educational.

Citazione stile Chigago Style (17a edizione)

Horniblow, E. C. T., e Norman Howard. Europe Including the British Isles. 15. impr. London: Grant Educational, 1953.

Citatione MLA (9a ed.)

Horniblow, E. C. T., e Norman Howard. Europe Including the British Isles. 15. impr. Grant Educational, 1953.