Harley Quinn: A Call to Arms is the fourth collection of the New 52 series Harley Quinn (Volume 2).
Issues
- Harley Quinn (Volume 2) #17
- Harley Quinn (Volume 2) #18
- Harley Quinn (Volume 2) #19
- Harley Quinn (Volume 2) #20
- Harley Quinn (Volume 2) #21
- Harley Quinn Road Trip Special #1
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