Cita APA (7a ed.)

Keetels, J. G. An elementary french gramar (New edition, with appendix.).

Cita Chicago Style (17a ed.)

Keetels, Jean Gustave. An Elementary French Gramar. New edition, with appendix. New York.

Cita MLA (8a ed.)

Keetels, Jean Gustave. An Elementary French Gramar. New edition, with appendix.