Tondreau, B. (2019). Layout essentials: 100 design principles for using grids (Revised and updated.). Rockport Publishers.
Chicago-viite (17. p.)Tondreau, Beth. Layout Essentials: 100 Design Principles for Using Grids. Revised and updated. Beverly, Massachusetts: Rockport Publishers, 2019.
MLA-viite (9. p.)Tondreau, Beth. Layout Essentials: 100 Design Principles for Using Grids. Revised and updated. Rockport Publishers, 2019.
Varoitus: Nämä viitteet eivät aina ole täysin luotettavia.