APA

Geyl P., . (1958). Debates with historians. Groningen [u.a.]: Wolters [u.a].

Chicago

Geyl Pieter, . 1958. Debates with historians. Groningen [u.a.]: Wolters [u.a].

Harvard

Geyl P., . (1958). Debates with historians. Groningen [u.a.]: Wolters [u.a].

MLA

Geyl Pieter, . Debates with historians. Groningen [u.a.]: Wolters [u.a]. 1958.