Dyfyniad APA

Bell, B., Costa, R., & Machin, S. (2015). Crime, compulsory schooling laws and education. Elsevier.

Dyfyniad Arddull Chicago

Bell, B., R. Costa, and S. Machin. Crime, Compulsory Schooling Laws and Education. Elsevier, 2015.

Dyfyniad MLA

Bell, B., et al. Crime, Compulsory Schooling Laws and Education. Elsevier, 2015.

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