APA

Hellyar (A .G L), . (1956). Flowers In Colour:An Amateur Gardening Encyclopaedia. : .

Chicago

Hellyar (A .G L), . 1956. Flowers In Colour:An Amateur Gardening Encyclopaedia. : .

Harvard

Hellyar (A .G L), . (1956). Flowers In Colour:An Amateur Gardening Encyclopaedia. : .

MLA

Hellyar (A .G L), . Flowers In Colour:An Amateur Gardening Encyclopaedia. : . 1956.