Citazione Stile APA (7a Edizione)

Parson, S. J., & Elder , S. S. D. (1970). Parsons' diseases of the eye (15th ed.). E.L.B.S; Churchill.

Citazione stile Chigago Style (17a edizione)

Parson, Sir J., e Sir Stewart Duke Elder. Parsons' Diseases of the Eye. 15th ed. London: E.L.B.S; Churchill, 1970.

Citatione MLA (9a ed.)

Parson, Sir J., e Sir Stewart Duke Elder. Parsons' Diseases of the Eye. 15th ed. E.L.B.S; Churchill, 1970.