1
Merriam-Webster.
| Merriam-Webster, Incorporated |
1989
제적(폐기)
2
Merriam-Webster.
| Merriam-Webster, Incorporated |
1984
제적(폐기)
3
Merriam Webster
| Merriam-Webster, Incorporated |
1988
제적(폐기)
5
Soukhanov, Anne H.
| Merriam-Webster, Incorporated |
1993
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