Cita APA (7a ed.)

Freedman, H. A., & Feldman, K. (2007). Black tie optional: A complete special events resource for nonprofit organizations (2nd ed.). John Wiley & Sons.

Cita Chicago Style (17a ed.)

Freedman, Harry A., y Karen Feldman. Black Tie Optional: A Complete Special Events Resource for Nonprofit Organizations. 2nd ed. Hoboken, New Jersey: John Wiley & Sons, 2007.

Cita MLA (9a ed.)

Freedman, Harry A., y Karen Feldman. Black Tie Optional: A Complete Special Events Resource for Nonprofit Organizations. 2nd ed. John Wiley & Sons, 2007.