Janzon, G. O. (1974). Gotlands mellanneolitiska gravar =: The middle-neolithic graves of Gotland. Almqvist & Wiksell.
Cita Chicago Style (17a ed.)Janzon, Gunborg O. Gotlands Mellanneolitiska Gravar =: The Middle-neolithic Graves of Gotland. Stockholm: Almqvist & Wiksell, 1974.
Cita MLA (8a ed.)Janzon, Gunborg O. Gotlands Mellanneolitiska Gravar =: The Middle-neolithic Graves of Gotland. Almqvist & Wiksell, 1974.
Precaución: Estas citas no son 100% exactas.