APA

Thomssen E., . (1949). Soaps and detergents. E.U.A: Mac Nais-Dorland Company.

Chicago

Thomssen E.G, . 1949. Soaps and detergents. E.U.A: Mac Nais-Dorland Company.

Harvard

Thomssen E., . (1949). Soaps and detergents. E.U.A: Mac Nais-Dorland Company.

MLA

Thomssen E.G, . Soaps and detergents. E.U.A: Mac Nais-Dorland Company. 1949.