Harvard:
Schmidt, J.. and Seidenfaden, E. xxxx, "Vegetation of Koh Lom: a small rocky island west of Koh Chang", in Journal of the Siam Society, vol. 18, no. 3,
APA:
Schmidt, J.. and Seidenfaden, E. (xxxx). Vegetation of Koh Lom: a small rocky island west of Koh Chang. Journal of the Siam Society, 18 (3) , .
Chicago:
Schmidt, Johs. and E. Seidenfaden. xxxx. "Vegetation of Koh Lom: a Small Rocky Island West of Koh Chang." In Journal of the Siam Society, 18 , no. 3: .
MLA:
Schmidt, Johs. and E. Seidenfaden. "Vegetation of Koh Lom: a Small Rocky Island West of Koh Chang." Journal of the Siam Society. 18.3 (xxxx): .
Citation within the text:
(Schmidt & Seidenfaden xxxx)
Zotero:
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BibTeX:
@article{schmidtxxxxvegetation,
  title = {Vegetation of Koh Lom: a small rocky island west of Koh Chang},
  author = {SCHMIDT, Johs. and SEIDENFADEN, E.},
  journal = {Journal of the Siam Society},
  year = {xxxx},
  volume = {18},
  number = {3},
  address = {Bangkok},
  keywords = {Southeast Asia;Science & Technology;Environmental Studies;Southeast Asia;Geography;Description & Travel},
  BAS = {533517},
  source = {bas},
}