ALTINER, D. Et Al. 2003. Morphological variation in Hemigordius harltoni Cushman & Waters, 1928: Remarks on the taxonomy of Carboniferous and Permian hemigordiopsids. RIVISTA ITALIANA DI PALEONTOLOGIA E STRATIGRAFIA , vol.109, no.2 , 195-211.

ALTINER, D., SAVINI, R., & ALTINER, S., (2003). Morphological variation in Hemigordius harltoni Cushman & Waters, 1928: Remarks on the taxonomy of Carboniferous and Permian hemigordiopsids. RIVISTA ITALIANA DI PALEONTOLOGIA E STRATIGRAFIA , vol.109, no.2, 195-211.

ALTINER, Demir, Ricardo SAVINI, And SEVİNÇ ALTINER. "Morphological variation in Hemigordius harltoni Cushman & Waters, 1928: Remarks on the taxonomy of Carboniferous and Permian hemigordiopsids," RIVISTA ITALIANA DI PALEONTOLOGIA E STRATIGRAFIA , vol.109, no.2, 195-211, 2003

ALTINER, Demir Et Al. "Morphological variation in Hemigordius harltoni Cushman & Waters, 1928: Remarks on the taxonomy of Carboniferous and Permian hemigordiopsids." RIVISTA ITALIANA DI PALEONTOLOGIA E STRATIGRAFIA , vol.109, no.2, pp.195-211, 2003

ALTINER, D. SAVINI, R. And ALTINER, S. (2003) . "Morphological variation in Hemigordius harltoni Cushman & Waters, 1928: Remarks on the taxonomy of Carboniferous and Permian hemigordiopsids." RIVISTA ITALIANA DI PALEONTOLOGIA E STRATIGRAFIA , vol.109, no.2, pp.195-211.

@article{article, author={Demir ALTINER Et Al. }, title={Morphological variation in Hemigordius harltoni Cushman & Waters, 1928: Remarks on the taxonomy of Carboniferous and Permian hemigordiopsids}, journal={RIVISTA ITALIANA DI PALEONTOLOGIA E STRATIGRAFIA}, year=2003, pages={195-211} }