Citazione Stile APA (7a Edizione)

Halsema, J. J. (1985). E.J. Halsema--colonial engineer (VI). E.J. Halsema--colonial engineer (VI)..

Citazione stile Chigago Style (17a edizione)

Halsema, James J. "E.J. Halsema--colonial Engineer (VI)." E.J. Halsema--colonial Engineer (VI). 1985.

Citatione MLA (9a ed.)

Halsema, James J. "E.J. Halsema--colonial Engineer (VI)." E.J. Halsema--colonial Engineer (VI)., 1985.