Dyfyniad APA

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

Dyfyniad Arddull Chicago

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

Dyfyniad MLA

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

Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.