Hillier's manual of trees and shrubs.

MLA

Hillier's Manual of Trees and Shrubs. 4th ed. London: David and Charles, 1977.

APA

(1977). Hillier's manual of trees and shrubs. 4th ed. London: David and Charles.

Chicago

Hillier's Manual of Trees and Shrubs. 4th ed. London: David and Charles, 1977.