APA (7th ed.) Citation

Hagen, P. W. (1977). Handbook for Cut- flower Growers. Royal Botanic Gardens.

Chicago Style (17th ed.) Citation

Hagen, P. W. Handbook for Cut- Flower Growers. Peradeniya: Royal Botanic Gardens, 1977.

MLA (9th ed.) Citation

Hagen, P. W. Handbook for Cut- Flower Growers. Royal Botanic Gardens, 1977.

Warning: These citations may not always be 100% accurate.