Citazione Stile APA (7a Edizione)

KELLS, L. M. (1966). Elementary differential equations. McGraw-Hill Kogakusha.

Citazione stile Chigago Style (17a edizione)

KELLS, Lyman M. Elementary Differential Equations. Tokyo: McGraw-Hill Kogakusha, 1966.

Citatione MLA (9a ed.)

KELLS, Lyman M. Elementary Differential Equations. McGraw-Hill Kogakusha, 1966.