Cita APA (7a ed.)

Pfister, G. F. (1998). In search of clusters (2nd ed., rev. updated version.). [S.n.].

Cita Chicago Style (17a ed.)

Pfister, Gregory F. In Search of Clusters. 2nd ed., rev. updated version. Upper Saddle River: [S.n.], 1998.

Cita MLA (9a ed.)

Pfister, Gregory F. In Search of Clusters. 2nd ed., rev. updated version. [S.n.], 1998.