Gaya APA

Hard, Rune. (1975). Workability of concrete - a testing method . : Pergamon Press.

Gaya Chicago

Hard, Rune. Workability of concrete - a testing method. : Pergamon Press, 1975. Computer Software.

Gaya MLA

Hard, Rune. Workability of concrete - a testing method. : Pergamon Press, 1975. Computer Software.

Gaya Turabian

Hard, Rune. Workability of concrete - a testing method. : Pergamon Press, 1975. Computer Software.