APA

Poppel F. W. a. V., Bartlema J. & Seminar on Adult Mortality and Orphanhood in the Past. (1984). Levels of orphanhood and measurement of adult mortality in populations of the past : the case of the Netherlands. The Heague, 1850-1880. San José: Centro Latinoamericano y Caribeño de Demografía.

Chicago

Poppel Frans W a Van, Bartlema Jan and Seminar on Adult Mortality and Orphanhood in the Past. 1984. Levels of orphanhood and measurement of adult mortality in populations of the past : the case of the Netherlands. The Heague, 1850-1880. San José: Centro Latinoamericano y Caribeño de Demografía.

Harvard

Poppel F. W. a. V., Bartlema J. and Seminar on Adult Mortality and Orphanhood in the Past. (1984). Levels of orphanhood and measurement of adult mortality in populations of the past : the case of the Netherlands. The Heague, 1850-1880. San José: Centro Latinoamericano y Caribeño de Demografía.

MLA

Poppel Frans W a Van, Bartlema Jan and Seminar on Adult Mortality and Orphanhood in the Past. Levels of orphanhood and measurement of adult mortality in populations of the past : the case of the Netherlands. The Heague, 1850-1880. San José: Centro Latinoamericano y Caribeño de Demografía. 1984.