MLA
Acts of the General Assembly of the State of Virginia : Passed at the Extra Session, Commenced December 4, 1862, in the 87th Year of the Commonwealth. John F. M'Dermot, public printer, 1863. Emory University. General Libraries. https://digital.library.emory.edu/purl/180vq83g0q-cor.
APA, 6th edition
Acts of the General Assembly of the state of Virginia : passed at the extra session, commenced December 4, 1862, in the 87th year of the commonwealth. (1863). [Southern imprint]. John F. M'Dermot, public printer; Emory University. General Libraries. https://digital.library.emory.edu/purl/180vq83g0q-cor.
Chicago
“Acts of the General Assembly of the State of Virginia : Passed at the Extra Session, Commenced December 4, 1862, in the 87th Year of the Commonwealth.” Southern imprint. Civil War Imprints. Wheeling [W. Va.]: John F. M'Dermot, public printer, 1863. Emory University. General Libraries. https://digital.library.emory.edu/purl/180vq83g0q-cor.