APA (7th ed.) Citation

Lodewijk, T., & Buchan, R. (1979). The book of tulips.

Chicago Style (17th ed.) Citation

Lodewijk, Tom, and Ruth Buchan. The Book of Tulips. 1979.

MLA (9th ed.) Citation

Lodewijk, Tom, and Ruth Buchan. The Book of Tulips. 1979.

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