Literal question
9. Native language
[] 1 Hungarian
[] 2 Slovakian
[] 3 Rumanian
[] 4 Serbian, Croatian, other Yugoslav
[] 5 German
[] 6 Gypsy
[] 7 Other, namely ____
Interviewer instructions
9. Mother tongue
Mother tongue is the language in which the person generally speaks with the members of his/her family and which one, free of all influences and true reality, declares to be his/her mother tongue. The mother tongue of the dumb and the infants unable to speak is the language in which their next of kin regularly speak. Only one language can be marked as mother tongue.
In case of Southern Slavic languages -- Bunjevac, Chroatian, Shokatz, Rascian, Slovenian, Vendish -- as far as question 9 is concerned the Bunjevac, Chroatian and Shokatz languages are grouped as Chroatian language, the Serbian and Rascian languages are grouped as Serbian language, while the Slovenian and Vendish languages are grouped as "other Southern Slavic" languages.