APA (7th ed.) Zitazioa
UNDEN, A., & ORTH-GOMER, K. (1990). DEVELOPMENT OF A SOCIAL SUPPORT INSTRUMENT FOR USE IN POPULATION SURVEYS.
Chicago Style (17th ed.) Zitazioa
UNDEN, A.L, eta K. ORTH-GOMER. DEVELOPMENT OF A SOCIAL SUPPORT INSTRUMENT FOR USE IN POPULATION SURVEYS. 1990.
MLA (9th ed.) Zitazioa
UNDEN, A.L, eta K. ORTH-GOMER. DEVELOPMENT OF A SOCIAL SUPPORT INSTRUMENT FOR USE IN POPULATION SURVEYS. 1990.
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