APA

Døvling Andersen L., Dirac G. A. & Dirac G. A. (1989). Graph theory in memory of G. A. Dirac. Amsterdam [u.a.]: North-Holland [u.a.].

Chicago

Døvling Andersen Lars, Dirac Gabriel Andrew and Dirac Gabriel Andrew. 1989. Graph theory in memory of G. A. Dirac. Amsterdam [u.a.]: North-Holland [u.a.].

Harvard

Døvling Andersen L., Dirac G. A. and Dirac G. A. (1989). Graph theory in memory of G. A. Dirac. Amsterdam [u.a.]: North-Holland [u.a.].

MLA

Døvling Andersen Lars, Dirac Gabriel Andrew and Dirac Gabriel Andrew. Graph theory in memory of G. A. Dirac. Amsterdam [u.a.]: North-Holland [u.a.]. 1989.