Style de citation APA (7e éd.)

Albertus, F. (1985). The seven rays of the QBL (Rev. and expanded ed.). Weiser.

Style de citation Chicago (17e éd.)

Albertus, Frater. The Seven Rays of the QBL. Rev. and expanded ed. York Beach, Maine: Weiser, 1985.

Style de citation MLA (8e éd.)

Albertus, Frater. The Seven Rays of the QBL. Rev. and expanded ed. Weiser, 1985.