APA citiranje

Dean, G., & Keane, T. (1972). An investigation of the high twinning rate in the Republic of Ireland.

Citação norma Chicago

Dean, G., and T. Keane. An Investigation of the High Twinning Rate in the Republic of Ireland. 1972.

MLA citiranje

Dean, G., and T. Keane. An Investigation of the High Twinning Rate in the Republic of Ireland. 1972.