Cita APA (7th ed.)

Weinberger, D., & Harrison, P. (2011). Preface to the 3rd Edition. Wiley-Blackwell.

Cita Chicago (17th ed.)

Weinberger, DR, i P. Harrison. Preface to the 3rd Edition. Wiley-Blackwell, 2011.

Cita MLA (9th ed.)

Weinberger, DR, i P. Harrison. Preface to the 3rd Edition. Wiley-Blackwell, 2011.