Cita APA (7a ed.)

Lluch, C. (1973). The extended linear expenditure system. [s.n.].

Cita Chicago Style (17a ed.)

Lluch, Constantino. The Extended Linear Expenditure System. [S.l.]: [s.n.], 1973.

Cita MLA (9a ed.)

Lluch, Constantino. The Extended Linear Expenditure System. [s.n.], 1973.