APA (7th ed.) Citation

Penny, M., & Penny, S. (1998). Silk painting made easy. A David & Charles Book.

Chicago Style (17th ed.) Citation

Penny, Martin, and Susan Penny. Silk Painting Made Easy. United Kingdom: A David & Charles Book, 1998.

MLA (9th ed.) Citation

Penny, Martin, and Susan Penny. Silk Painting Made Easy. A David & Charles Book, 1998.