APA (7th ed.) Citation

Tulip, M., Green, L., & Nicholas, R. A. (2019). Heads up: Spoken English for business (Second edition.). Delta Publishing.

Chicago Style (17th ed.) Citation

Tulip, Mark, Louise Green, and Richard A. Nicholas. Heads Up: Spoken English for Business. Second edition. Peaslake, Surrey: Delta Publishing, 2019.

MLA (9th ed.) Citation

Tulip, Mark, et al. Heads Up: Spoken English for Business. Second edition. Delta Publishing, 2019.