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APA Citation
Blackman, M., Black, H., Gaiman, N., Landy, D., Higson, C., Scarrow, A., Mead, R., Ness, P., Reeve, P., Sedgwick, M., Scott, M., & Colfer, E. (2015). 12 Doctors 12 stories.. London : Penguin Books. http://access.bl.uk/ark:/81055/vdc_100048680451.0x000001