Ask the Library: Reference

You can find this in the APA Manual 7th edition, 10.11 Tests, Scales, and Inventories

The basic layout is: Author, A. A. (Year). Title of the Test. Test Database Name. URL

Using your first example, it would read: Dunn, L. & Dunn, L. (1997). PPVT-III: Peabody picture vocabulary test. American Guidance Service.