APA (7th ed.) Citation

Flawn, L. N., & Flawn, V. L. (1966). The cool greenhouse all the year round. Gifford.

Chicago Style (17th ed.) Citation

Flawn, Louis N., and Victor L. Flawn. The Cool Greenhouse All the Year Round. London: Gifford, 1966.

MLA (8th ed.) Citation

Flawn, Louis N., and Victor L. Flawn. The Cool Greenhouse All the Year Round. Gifford, 1966.