Harvard:
Hockett, C.F. and Fang, C. xxxx, "Spoken Chinese",
APA:
Hockett, C.F. and Fang, C. (xxxx). Spoken Chinese. .
Chicago:
Hockett, Charles Francis and Chaoying Fang. xxxx. "Spoken Chinese." .
MLA:
Hockett, Charles Francis and Chaoying Fang. "Spoken Chinese." (xxxx): .
Citation within the text:
(Hockett & Fang xxxx)
Zotero:
Save reference in Zotero
BibTeX:
@article{hockettxxxxspoken,
  title = {Spoken Chinese},
  author = {HOCKETT, Charles Francis and FANG, Chaoying},
  year = {xxxx},
  address = {Repr. of 1944},
  keywords = {China;Language},
  BAS = {252068},
  source = {bas},
}