How do I reference Gibbs' reflective cycle in APA (7th ed.)?
Answer
Wherever possible you should use the original work.
Gibbs, G. (1988). Learning by doing: A guide to teaching and learning methods. Further Education Unit.
Secondary referencing
If you have not read the original you must make this clear by referring to the work in which you found the reference. In the reference list only include details of the work that you read.
In-text citation
Gibbs’ reflective cycle (1988) as cited in Jasper (2013) shows that…
or
Gibbs’ reflective cycle is a seminal theory in reflective practice (Gibbs, 1988, as cited in Jasper, 2013).
In the reference list
Jasper, M. (2013). Beginning reflective practice (2nd ed.). Cengage Learning.