Mary Wollstonecraft Shelley (2015). “Annotated Frankenstein: Or, The Modern Prometheus with English Grammar Exercises: by Mary Wollstonecraft Shelley (Author), Robert Powell (Editor)”, p.232, Powell Publications, LLC
Mary Wollstonecraft Shelley (2015). “Annotated Frankenstein: Or, The Modern Prometheus with English Grammar Exercises: by Mary Wollstonecraft Shelley (Author), Robert Powell (Editor)”, p.29, Powell Publications, LLC
Mary Wollstonecraft Shelley (2015). “Annotated Frankenstein: Or, The Modern Prometheus with English Grammar Exercises: by Mary Wollstonecraft Shelley (Author), Robert Powell (Editor)”, p.232, Powell Publications, LLC