Cita APA (7th ed.)

Horner, D., & Horner, D. A. (2000). The seeds of virtue.

Cita Chicago (17th ed.)

Horner, D., i David A. Horner. The Seeds of Virtue. 2000.

Cita MLA (9th ed.)

Horner, D., i David A. Horner. The Seeds of Virtue. 2000.