Παραπομπή APA

Whitring, P. . .. (1948). Floor finishes: A guide to their selection. E & F.N.Spon Ltd.

Παραπομπή Chicago Style

Whitring, Penelope. Floor Finishes: A Guide to Their Selection. London: E & F.N.Spon Ltd, 1948.

Παραπομπή MLA

Whitring, Penelope. Floor Finishes: A Guide to Their Selection. E & F.N.Spon Ltd, 1948.