Παραπομπή APA

Gupta , R. .. R., Kumar , M., & Gupta , V. (1999). Heterocyclic chemistry: Five membered heterocycles. Springer.

Παραπομπή Chicago Style

Gupta , R . R., M. Kumar , και V. Gupta. Heterocyclic Chemistry: Five Membered Heterocycles. New Delhi: Springer, 1999.

Παραπομπή MLA

Gupta , R . R., et al. Heterocyclic Chemistry: Five Membered Heterocycles. Springer, 1999.