Gaya APA

Johannes Boshoom. (1977). Gravenhage: Martinus Nijhoff.

Gaya Chicago

Johannes Boshoom. . Gravenhage: Martinus Nijhoff, 1977. Buku.

Gaya MLA

Johannes Boshoom. . Gravenhage: Martinus Nijhoff, 1977. Buku.

Gaya Turabian

Johannes Boshoom. Gravenhage: Martinus Nijhoff, 1977. Buku.