APA (7th ed.) Citation

Gairdner, J., Page, J., Lydgate, J., & Gregory, W. The historical collections of a citizen of London in the fifteenth century...

Chicago Style (17th ed.) Citation

Gairdner, James, John Page, John Lydgate, and William Gregory. The Historical Collections of a Citizen of London in the Fifteenth Century...

MLA (9th ed.) Citation

Gairdner, James, et al. The Historical Collections of a Citizen of London in the Fifteenth Century...