APA
Davitt S., . (1976). Physical characteristics of some gravels used in road construction in Ireland. Dublin: National Institute for Physical Planning and Construction Research. RC151.
Chicago
Davitt S, . 1976. Physical characteristics of some gravels used in road construction in Ireland. Dublin: National Institute for Physical Planning and Construction Research. RC151.
Harvard
Davitt S., . (1976). Physical characteristics of some gravels used in road construction in Ireland. Dublin: National Institute for Physical Planning and Construction Research. RC151.
MLA
Davitt S, . Physical characteristics of some gravels used in road construction in Ireland. Dublin: National Institute for Physical Planning and Construction Research. RC151. 1976.