[Briefwisseling J. Schotte - Mrs Edw G Ballard].

MLA

[briefwisseling J. Schotte - Mrs Edw G Ballard]. 1979.

APA

(1979). [Briefwisseling J. Schotte - Mrs Edw G Ballard]. .

Chicago

[briefwisseling J. Schotte - Mrs Edw G Ballard].