APA Style
Kliegman, R, M. et al (2020).
Nelson textbook of pediatrics .2vol set. (21st ed).
New Delhi:
Elsevier RELX India Pvt. Ltd. 2020.
MLA Style
Kliegman, Robert, M. et al.
"Nelson textbook of pediatrics .2vol set.".
21st ed
New Delhi:
Elsevier RELX India Pvt. Ltd. 2020,
2020.
Text.