APA-viite (7. p.)

PIAGGIO, H. (1965). Elementary treatise on differential equations: And their applications. Green book.

Chicago-viite (17. p.)

PIAGGIO, H.T.H. Elementary Treatise on Differential Equations: And Their Applications. Dacca: Green book, 1965.

MLA-viite (9. p.)

PIAGGIO, H.T.H. Elementary Treatise on Differential Equations: And Their Applications. Green book, 1965.