Cita APA (7a ed.)

Henrard, J. (1950). Monograph of the genus digitaria. Universitaire pers Leiden.

Cita Chicago Style (17a ed.)

Henrard, J.Th. Monograph of the Genus Digitaria. Leiden: Universitaire pers Leiden, 1950.

Cita MLA (9a ed.)

Henrard, J.Th. Monograph of the Genus Digitaria. Universitaire pers Leiden, 1950.