Dyfyniad APA

Haslam, J., Willis, H. A., & Squirrell, D. C. M. (1981). Identification and analysis of plastics. Heyden.

Dyfyniad Arddull Chicago

Haslam, J., Harry Arthur Willis, and D. C. M. Squirrell. Identification and Analysis of Plastics. London: Heyden, 1981.

Dyfyniad MLA

Haslam, J., et al. Identification and Analysis of Plastics. Heyden, 1981.

Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.