Above the salt.
Plass, Margaret.
Above the salt. - Pennsilvania-US : Univesity of Pennsylvania, 1963.. - páginas 39-41 : ilustraciones blanco y negro - Trimenstral - Vol.5, no 3(1963) - Expedition. the bulletin of the university museum of the university of pennsilvania ; no. 4 . - University of Pennsylvania. .
Above the salt. - Pennsilvania-US : Univesity of Pennsylvania, 1963.. - páginas 39-41 : ilustraciones blanco y negro - Trimenstral - Vol.5, no 3(1963) - Expedition. the bulletin of the university museum of the university of pennsilvania ; no. 4 . - University of Pennsylvania. .