CLEMATIS THE MONTANAS. 2005. Garden Art Press.
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CHOOSING YOUR CLEMATIS. 2000. Garden Art Press.)
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TROUBLE FREE CLEMATIS.THE VITICELLAS. 1999. Garden Art Press.
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THE ROSE AND THE CLEMATIS AS GOOD COMPANIONS. 1996. Garden Art Press.
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CLEMATIS ZELF KWEKEN. Dutch Edition. 1995. Helmond.

GROWING CLEMATIS. 1994. London. Ward Lock.

A GUIDE TO CLEMATIS. 1994. London. New Orchard.

A PLANTSMAN'S GUIDE TO CLEMATIS. 1990. London. Ward Lock.