Speer Glenn M., Grumet Tobey, Hadad Herbert, Kamisar Stacy, Stiewe David J., & Young, K. R. (1997). The guinness book of world records 1998. Guinness Media.
Chicago-čujuhus (17. p.)Speer Glenn M., Grumet Tobey, Hadad Herbert, Kamisar Stacy, Stiewe David J., juo Karen Romano Young. The Guinness Book of World Records 1998. Stamford: Guinness Media, 1997.
MLA-čujuhus (9. p.)Speer Glenn M., et al. The Guinness Book of World Records 1998. Guinness Media, 1997.
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