− | |+ Table 1. Summary of dry and wet core preservation methods<ref name=API>American Petroleum Institute, 1960.</ref><ref name=Basan>Basan et al, 1988.</ref> | + | |+ Table 1. Summary of dry and wet core preservation methods<ref name=API>American Petroleum Institute, 1960.</ref><ref name=Basan_et_al_1988 /> |