Answered By: Jackie Stevens Last Updated: Jul 06, 2020 Views: 2
This response is based on an enquiry about a similar example in the official APA 6th official blog (link below). See the post by Tracey Lowndes on May 16, 2011 at 01:55, and Timothy McAdoo's response.
In text, the first citation would be (McGinn, Roth, Boutonné, & Woszczyna, 1995, cited in McGinn, Smith, Jones, & Roth, 1999, p. 18). The second (and further) citations will be (McGinn et al., 1995, cited in McGinn et al., 1999).
As per the rule for secondary references, the reference list should only include the citation for the work you have read - in this case, McGinn et al., 1999.
The relevant rules for numbers of authors (in this case, three to five), and secondary sources (journal article example) are linked below for further reference.