Παραπομπή APA

Bull, W. J. (1991). Precast Concrete Raft Units. Blackie.

Παραπομπή Chicago Style

Bull, W. John. Precast Concrete Raft Units. Glasgow: Blackie, 1991.

Παραπομπή MLA

Bull, W. John. Precast Concrete Raft Units. Blackie, 1991.