APA (7th ed.) Citation

Hartnett, J., Dalton, T., Green, E., Beale, S. R., & McCrory, H. Penny dreadful.

Chicago Style (17th ed.) Citation

Hartnett, Josh, Timothy Dalton, Eva Green, Simon Russell Beale, and Helen McCrory. Penny Dreadful.

MLA (9th ed.) Citation

Hartnett, Josh, et al. Penny Dreadful.