The Royal botanic gardens, Kew : historical and descriptive,

MLA

Bean, W. J, et al. The Royal Botanic Gardens, Kew : Historical and Descriptive. London: Cassell, 1908.

APA

Bean, W. J, Olivier, H. A, Thiselton-Dyer, W. T, & Wallis, E. J. (1908). The Royal botanic gardens, Kew : historical and descriptive. London: Cassell.

Chicago

Bean, W. J., H. A Olivier, William T Thiselton-Dyer, and E. J Wallis. The Royal Botanic Gardens, Kew: Historical and Descriptive,. London: Cassell, 1908.