BARRETT, C. (1987). Practical Handbook Of Transportation Contracting And Rate Negotiation Collin Barrett. The Traffic Service Corporatio.
Chicago-viite (17. p.)BARRETT, Colin. Practical Handbook Of Transportation Contracting And Rate Negotiation Collin Barrett. The Traffic Service Corporatio, 1987.
MLA-viite (8. p.)BARRETT, Colin. Practical Handbook Of Transportation Contracting And Rate Negotiation Collin Barrett. The Traffic Service Corporatio, 1987.
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