Postema, A. R. (1988). Studies on the preparation of strong/stiff polymeric fibres. [Drucker:] Krips Repro.
Lua i Stíl Chicago (17ú heag.)Postema, Aaldrik Roelf. Studies on the Preparation of Strong/stiff Polymeric Fibres. Meppel: [Drucker:] Krips Repro, 1988.
Lua MLA (8ú heag.)Postema, Aaldrik Roelf. Studies on the Preparation of Strong/stiff Polymeric Fibres. [Drucker:] Krips Repro, 1988.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.