Cita APA (7a ed.)

O'Sullivan, P. (1990). All about the angels. Tan Books and Publishers.

Cita Chicago Style (17a ed.)

O'Sullivan, Paul. All About the Angels. Rockford, Illinois: Tan Books and Publishers, 1990.

Cita MLA (9a ed.)

O'Sullivan, Paul. All About the Angels. Tan Books and Publishers, 1990.