This paper examines language variation in terms of overdetermination and underdetermination of structural information as related to grammatical rules and the structure of social behavior. (CLK)

Pronominal usage in spoken Bangkok Thai is described from a sociolinguistic point of view. Two phonological variants are indicated: one when a variant occurs in isolation and the other in natural speech. These two types of phonological variation generally are marked by different tones. (Author/RM)

Attempts a preliminary typological study of sub-languages constituting one national language. Three types of sub-languages are distinguished: natural language, language of science, and informational language. They are compared to the three levels of language analysis, speech, norm and system. (RM)