SpringerLink (Online service), Smol, J. P., Birks, H. J. B., Last, W. M., Bradley, R. S., & Alverson, K. (2001). Tracking Environmental Change Using Lake Sediments: Terrestrial, Algal, and Siliceous Indicators. Springer Netherlands.
Παραπομπή σε μορφή Chicago (17η εκδ.)SpringerLink (Online service), John P. Smol, H. John B. Birks, William M. Last, Raymond S. Bradley, και Keith Alverson. Tracking Environmental Change Using Lake Sediments: Terrestrial, Algal, and Siliceous Indicators. Dordrecht: Springer Netherlands, 2001.
Παραπομπή σε μορφή MLA (8th εκδ.)SpringerLink (Online service), et al. Tracking Environmental Change Using Lake Sediments: Terrestrial, Algal, and Siliceous Indicators. Springer Netherlands, 2001.
Πρόσοχή: Οι παραπομπές μπορεί να μην είναι 100% ακριβείς.