Vickery, R. L. (1970). The process way to science ; Bk. A: A four-book series for middle and upper primary grades. Jacaranda.
Lua i Stíl Chicago (17ú heag.)Vickery, R. L. The Process Way to Science ; Bk. A: A Four-book Series for Middle and Upper Primary Grades. Milton, Q: Jacaranda, 1970.
Lua MLA (9ú heag.)Vickery, R. L. The Process Way to Science ; Bk. A: A Four-book Series for Middle and Upper Primary Grades. Jacaranda, 1970.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.