Não informado. Northwestern Report. Northwestern University, Department of Alumni Relations.
Citação do estilo Chicago (17ª ed.)Não informado. Northwestern Report. Evanston, Ill: Northwestern University, Department of Alumni Relations.
Citação MLA (8ª ed.)Não informado. Northwestern Report. Northwestern University, Department of Alumni Relations.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.