Style de citation APA (7e éd.)

Costa Ramalho, A. d. (1968). Portuguese essays (2d ed., rev.). National Secretatiat for Information.

Style de citation Chicago (17e éd.)

Costa Ramalho, Americo da. Portuguese Essays. 2d ed., rev. Lisbon: National Secretatiat for Information, 1968.

Style de citation MLA (8e éd.)

Costa Ramalho, Americo da. Portuguese Essays. 2d ed., rev. National Secretatiat for Information, 1968.