Cita APA (7a ed.)

Laurini, R., & Milleret-Raffort, F. (1992). A conceptual framework for multiple representations of spatial objects with the entity-relationship approach. [s.n.].

Cita Chicago Style (17a ed.)

Laurini, Robert, y Françoise Milleret-Raffort. A Conceptual Framework for Multiple Representations of Spatial Objects with the Entity-relationship Approach. [S.l.]: [s.n.], 1992.

Cita MLA (9a ed.)

Laurini, Robert, y Françoise Milleret-Raffort. A Conceptual Framework for Multiple Representations of Spatial Objects with the Entity-relationship Approach. [s.n.], 1992.