Citazione Stile APA (7a Edizione)

Grönfors, K. (1982). Cargo key receipt and transport document replacement. Scandinavian University Books.

Citazione stile Chigago Style (17a edizione)

Grönfors, Kurt. Cargo Key Receipt and Transport Document Replacement. Göteborg: Scandinavian University Books, 1982.

Citatione MLA (9a ed.)

Grönfors, Kurt. Cargo Key Receipt and Transport Document Replacement. Scandinavian University Books, 1982.