Harvard:
Purnell, H.C. 1968, "",
APA:
Purnell, H.C. (1968). . .
Chicago:
Purnell, Herbert C. 1968. "." .
MLA:
Purnell, Herbert C. "." (1968): .
Citation within the text:
(Purnell 1968)
Zotero:
Save reference in Zotero
BibTeX:
@article{purnell1968review,
  author = {Purnell, Herbert C.},
  year = {1968},
  x-huffmanId = {2806},
  source = {huffman-l-z},
}