In-text citation (paraphrase)
Fong’s 1987 study (as cited in Bertram, 1996) found that older students’ memory can be as good as that of young people, but this depends on how memory is tested.
Reference List
Do not include Fong (1987) in your References; do include Bertram (1996)
Format:
Author Surname, First Initial. Second Initial [of the source you read]. (Year). Book title: Subtitle. Place of Publication: Publisher.