Harvard:
Okell, J. 1969-81, "",
APA:
Okell, J. (1969-81). . .
Chicago:
Okell, John. 1969-81. "." .
MLA:
Okell, John. "." (1969-81): .
Citation within the text:
(Okell 1969-81)
Zotero:
Save reference in Zotero
BibTeX:
@article{okell1969-81review,
  author = {Okell, John},
  year = {1969-81},
  x-huffmanId = {2172},
  source = {huffman-l-z},
}