Proctor, R. A. Half-hours with the Telescope Being a Popular Guide to the Use of the Telescope as a Means of Amusement and Instruction.
Чикаго стиль цитування (17-те видання)Proctor, Richard A. Half-hours with the Telescope Being a Popular Guide to the Use of the Telescope as a Means of Amusement and Instruction.
Стиль цитування MLA (9-ме видання)Proctor, Richard A. Half-hours with the Telescope Being a Popular Guide to the Use of the Telescope as a Means of Amusement and Instruction.
Попередження: стилі цитування не завжди правильні на всі 100%.