APA (7e ed.) Bronvermelding

Firesmith, D., Henderson-Sellers, B., & Graham, I. S. (1998). OPEN modeling language OML: Reference manual. Cambridge University.

Chicago (17e ed.) Bronvermelding

Firesmith, Donald, Brian Henderson-Sellers, en Ian S. Graham. OPEN Modeling Language OML: Reference Manual. Cambridge: Cambridge University, 1998.

MLA (9e ed.) Bronvermelding

Firesmith, Donald, et al. OPEN Modeling Language OML: Reference Manual. Cambridge University, 1998.