Dyson, P., Morris, R., & Holman, R. (1997). Dietary intake screening by means of a food-frequency questionnaire.
Lua i Stíl Chicago (17ú heag.)Dyson, P., R. Morris, agus R. Holman. Dietary Intake Screening by Means of a Food-frequency Questionnaire. 1997.
Lua MLA (9ú heag.)Dyson, P., et al. Dietary Intake Screening by Means of a Food-frequency Questionnaire. 1997.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.