Martin, S., & Layson, M. (2001). Mas mabigat na parusa, ipataw-Noli / Sammy Martin at Mer Layson. Kabayan.
Lua i Stíl Chicago (17ú heag.)Martin, Sammy, agus Mer Layson. "Mas Mabigat Na Parusa, Ipataw-Noli / Sammy Martin at Mer Layson." Kabayan 2001.
Lua MLA (9ú heag.)Martin, Sammy, agus Mer Layson. "Mas Mabigat Na Parusa, Ipataw-Noli / Sammy Martin at Mer Layson." Kabayan, 2001.
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