Cita APA (7a ed.)

Johansen, P. (1972). An algebraic normal form for regular events. Polyteknisk Forlag.

Cita Chicago Style (17a ed.)

Johansen, Peter. An Algebraic Normal Form for Regular Events. Lyngby: Polyteknisk Forlag, 1972.

Cita MLA (9a ed.)

Johansen, Peter. An Algebraic Normal Form for Regular Events. Polyteknisk Forlag, 1972.