Cita APA (7a ed.)

Hoekstra, A. H. (1968). The chemistry and luminescence of antimony-containing calcium chlorapatite,. Philips Research Laboratories.

Cita Chicago Style (17a ed.)

Hoekstra, Age Hylke. The Chemistry and Luminescence of Antimony-containing Calcium Chlorapatite,. [Eindhoven: Philips Research Laboratories, 1968.

Cita MLA (8a ed.)

Hoekstra, Age Hylke. The Chemistry and Luminescence of Antimony-containing Calcium Chlorapatite,. Philips Research Laboratories, 1968.