APA (7e ed.) Bronvermelding

Kera, C. R. (1987). Rugby league handbook: A teachers' guide for provincial high schools. Dept. of Education.

Chicago (17e ed.) Bronvermelding

Kera, Clay R. Rugby League Handbook: A Teachers' Guide for Provincial High Schools. [Port Moresby]: Dept. of Education, 1987.

MLA (9e ed.) Bronvermelding

Kera, Clay R. Rugby League Handbook: A Teachers' Guide for Provincial High Schools. Dept. of Education, 1987.