APA (7th ed.) Citation

Essex, R. D., Holland, H. R., Northumberland, A. P., & Pembroke, P. H. (1642). New propositions.

Chicago Style (17th ed.) Citation

Essex, Robert Devereux, Henry Rich Holland, Algernon Percy Northumberland, and Philip Herbert Pembroke. New Propositions. 1642.

MLA (9th ed.) Citation

Essex, Robert Devereux, et al. New Propositions. 1642.