APA Style
Xu, A, K. et al (2015).
The Harary Index of a Graph (1).
Springer Berlin, Heidelberg:
Springer Berlin, Heidelberg.
MLA Style
Xu, Authors, Kexiang. et al.
"The Harary Index of a Graph".
1
Springer Berlin, Heidelberg:
Springer Berlin, Heidelberg,
2015.
Text.