Guercino in Britain : : Paintings from British Collections (exhibition London, National Gallery, 28.06-31.07.1991) / / essays by Michael Helston and Francis Russell ; catalogue by Michael Helston and Tom Henry based on the researches of Denis Mahon.

MLA

Helston, Michael, et al. Guercino In Britain : Paintings From British Collections (exhibition London, National Gallery, 28.06-31.07.1991). London: National Gallery (Londen), 1991.

APA

Helston, M., Russell, F., Henry, T., & Mahon, D. (1991). Guercino in Britain : Paintings from British Collections (exhibition London, National Gallery, 28.06-31.07.1991). London: National Gallery (Londen).

Chicago

Helston, Michael, Francis Russell, Tom Henry, and Denis Mahon. Guercino In Britain: Paintings From British Collections (exhibition London, National Gallery, 28.06-31.07.1991). London: National Gallery (Londen), 1991.