The photographic encyclopedia of roses

MLA

Harkness, Peter. The Photographic Encyclopedia of Roses. Godalming: Colour Library Books, 1991.

APA

Harkness, P. (1991). The photographic encyclopedia of roses. Godalming: Colour Library Books.

Chicago

Harkness, Peter The Photographic Encyclopedia of Roses. Godalming: Colour Library Books, 1991.