Lasswell, Steven Theophilos. 1998. An Ecological Reference Grammar of Sölring North Frisian. (Doctoral dissertation, University of California at Santa Barbara).
@phdthesis{frr_lasswell1998,
author = {Lasswell, Steven Theophilos},
school = {University of California at Santa Barbara},
title = {An Ecological Reference Grammar of Sölring North Frisian},
year = {1998}
}