Perkins, L. B., & Bordwell, R. (2010). Building type basics for elementary and secondary schools (2nd edition.). John Wiley & Sons.
Chicago-viite (17. p.)Perkins, L. Bradford, ja Raymond Bordwell. Building Type Basics for Elementary and Secondary Schools. 2nd edition. Hoboken, N.J.: John Wiley & Sons, 2010.
MLA-viite (8. p.)Perkins, L. Bradford, ja Raymond Bordwell. Building Type Basics for Elementary and Secondary Schools. 2nd edition. John Wiley & Sons, 2010.
Varoitus: Nämä viitteet eivät aina ole täysin luotettavia.