APA-referens (7:e uppl.)

Halim, V., & Collins, N. (2018). Calligraphy styling: Learn the art of beautiful writing. Lark.

Chicago-referens (17:e uppl.)

Halim, Veronica, och Nathan Collins. Calligraphy Styling: Learn the Art of Beautiful Writing. New York: Lark, 2018.

MLA-referens (9:e uppl.)

Halim, Veronica, och Nathan Collins. Calligraphy Styling: Learn the Art of Beautiful Writing. Lark, 2018.