Vandervort, D. W., & Feldman, F. (1988). Patio roofs & gazebos. Sunset Books.
Cita Chicago (17th ed.)Vandervort, Donald W., i Fran Feldman. Patio Roofs & Gazebos. Menlo Park, Calif: Sunset Books, 1988.
Cita MLA (9th ed.)Vandervort, Donald W., i Fran Feldman. Patio Roofs & Gazebos. Sunset Books, 1988.
Atenció: Aquestes cites poden no estar 100% correctes.