Dyfyniad APA

International HISPA Congress Lisbon, P. (1982). Proceedings of the IX International HISPA Congress. [Lisbon, Portugal]: Ministerio da Qualidade de Vida.

Dyfyniad Arddull Chicago

International HISPA Congress Lisbon, Portugal). Proceedings of the IX International HISPA Congress. [Lisbon, Portugal]: Ministerio da Qualidade de Vida, 1982.

Dyfyniad MLA

International HISPA Congress Lisbon, Portugal). Proceedings of the IX International HISPA Congress. [Lisbon, Portugal]: Ministerio da Qualidade de Vida, 1982.

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