APA

Lohberg R., Lutz T. c. & Utecht G. i. (1984). BASIC. Lisboa: Publipress.

Chicago

Lohberg Rolf, Lutz Theo co-aut and Utecht Gerhard il. 1984. BASIC. Lisboa: Publipress.

Harvard

Lohberg R., Lutz T. c. and Utecht G. i. (1984). BASIC. Lisboa: Publipress.

MLA

Lohberg Rolf, Lutz Theo co-aut and Utecht Gerhard il. BASIC. Lisboa: Publipress. 1984.