Cita APA (7a ed.)

Siegel, J. M. (1995). Pet ownership and the importance of pets among adolescents. [s.n.].

Cita Chicago Style (17a ed.)

Siegel, Judith M. Pet Ownership and the Importance of Pets Among Adolescents. [S.l.]: [s.n.], 1995.

Cita MLA (9a ed.)

Siegel, Judith M. Pet Ownership and the Importance of Pets Among Adolescents. [s.n.], 1995.