Citazione Stile APA (7a Edizione)

Poincaré, H. (1994). Natural science: Selections from the twentieth-century (2nd ed., 5th print.). Encyclopaedia Britannica.

Citazione stile Chigago Style (17a edizione)

Poincaré, Henri. Natural Science: Selections from the Twentieth-century. 2nd ed., 5th print. Chicago [etc.]: Encyclopaedia Britannica, 1994.

Citatione MLA (9a ed.)

Poincaré, Henri. Natural Science: Selections from the Twentieth-century. 2nd ed., 5th print. Encyclopaedia Britannica, 1994.