APA (7th ed.) Citation

M. A. H. & H, M. A. (1863). Cosmo's visit to his grandfather. R. Carter & Brothers.

Chicago Style (17th ed.) Citation

M. A. H. and M. A. H. Cosmo's Visit to His Grandfather. New-York: R. Carter & Brothers, 1863.

MLA (9th ed.) Citation

M. A. H. and M. A. H. Cosmo's Visit to His Grandfather. R. Carter & Brothers, 1863.