International Standard Book Numbers

The ISBN for APA’s 2020 Payroll Source Plus is 978-1-944301-45-3.

The ISBN for APA’s 2020 The Payroll Source® Online is 978-1-944301-46-0.

The ISBN for APA’s 2020 edition of APA’s Guide to Local Payroll Taxes is 978-1-944301-44-6.

The ISBN for APA’s 2020 edition of APA’s Guide to Federal and State Garnishment Laws is 978-1-944301-47-7.

The ISBN for APA’s 2020 edition of APA’s Guide to Federal and State Wage & Hour Laws is 978-1-944301-48-4.