TY  - BOOK
T1  - Dr. Walker's invisible champion foyl'd: or, An appendix to the late Narrative of the siege of Derry: wherein all the arguments offered in a late pamphlet to prove it a false libel, are examin'd and refuted /By John Mackenzie, publisher of the said narrative.
A1  - Mackenzie, John, 1648?-1696
LA  - English
PP  - London
PB  - printed for the author, and sold by the booksellers of London
YR  - 1690
UL  - https://web.marshlibrary.ie/catalogue/Record/BI27509
OP  - 13
CN  - XVII F 15
KW  -   Clark, Joseph Wilkinson. Mr. John Mackenzyes narrative of the siege of London-Derry, a false libel - Early works to 1800.  Londonderry (Northern Ireland) - History - Siege, 1688-1689 - Early works to 1800.
KW  - Walker, George, 1645?-1690. Siege of Mackenzie, John, 1648?-1696. Narrative of the siege of London-Derry - Early works to 1800.
ER  -