Cita APA

Hardy, J. G., & Newble, G. M. (1974). Letter: Thyopac-5 test.

Chicago Style Citation

Hardy, J G., i G M. Newble. Letter: Thyopac-5 Test. 1974.

Cita MLA

Hardy, J G., i G M. Newble. Letter: Thyopac-5 Test. 1974.