Citazione APA

Gupta , R. .. R., Kumar , M., & Gupta , V. (1998). Heterocyclic chemistry: Principles , three and four membered heterocyces. Springer.

Stile di citazione Chicago

Gupta , R . R., M. Kumar , e V. Gupta. Heterocyclic Chemistry: Principles , Three and Four Membered Heterocyces. New Delhi: Springer, 1998.

Citazione MLA

Gupta , R . R., et al. Heterocyclic Chemistry: Principles , Three and Four Membered Heterocyces. Springer, 1998.